G.INP and ECI modem problem

I have had nearly 4 years of trouble free max sync fastpath connection using ECI modem until yesterday. The cab is just outside my door.

Line went funny yesterday so I decided to take a look at my TBB graph and it shows some funky stuff in the morning then followed by a drop from max sync to about 67mb and quite a large ping increase from a steady 9ms to BBC up to 30ms. I thought here we go [censored] DLM again.

So I borrowed a trusty routed HG612 and took some stats and compared them to what I took before and noticed the G.INP is on but the sync was back at max and ping dropped to normal levels. Put the ECI modem back on and the connection drops back to 67mb and large ping increase again.

So it looks like my modem has not had the firmware flash before the cab got his upgrade which IMO is just ridiculously incompetent of BT - you would think they could get this right? OK it's BT we're taking about here..

I could just buy my own modem but why should I? BT are coming out tomorrow to have a look and they either update the firmware or change the modem to the HG612. I would prefer to keep the ECI as it has a higher upload speed and 3ms lower ping.

My G.INP stats.

# xdslcmd info --pbParams
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Last initialization procedure status: 0
Max: Upstream rate = 35752 Kbps, Downstream rate = 97756 Kbps
Bearer: 0, Upstream rate = 20000 Kbps, Downstream rate = 79999 Kbps
Bearer: 1, Upstream rate = 0 Kbps, Downstream rate = 0 Kbps
Discovery Phase (Initial) Band Plan
US: (7,32) (871,1205) (1972,2782)
DS: (33,859) (1216,1961) (2793,3970)
Medley Phase (Final) Band Plan
US: (7,32) (871,1205) (1972,2782)
DS: (33,859) (1216,1961) (2793,3970)
VDSL Port Details Upstream Downst
ream
Attainable Net Data Rate: 35752 kbps 97756 kbps
Actual Aggregate Tx Power: - 5.9 dBm 13.1 dBm
================================================================================
====
VDSL Band Status U0 U1 U2
U3 U4 D1 D2 D3
Line Attenuation(dB): 2.3 9.0 12.3 N/A N/A 5.6 11.4
17.4
Signal Attenuation(dB): 2.3 8.1 11.5 N/A N/A 7.0 11.3
17.4
SNR Margin(dB): 16.4 16.4 16.1 N/A N/A 10.8
10.8 10.8
TX Power(dBm): -20.0 -33.9 -6.0 N/A N/A 9.7
7.9 6.9

xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Last initialization procedure status: 0
Max: Upstream rate = 35744 Kbps, Downstream rate = 97756 Kbps
Bearer: 0, Upstream rate = 20000 Kbps, Downstream rate = 79999 Kbps
Bearer: 1, Upstream rate = 0 Kbps, Downstream rate = 0 Kbps
Link Power State: L0
Mode: VDSL2 Annex B
VDSL2 Profile: Profile 17a
TPS-TC: PTM Mode(0x0)
Trellis: U:ON /D:ON
Line Status: No Defect
Training Status: Showtime
Down Up
SNR (dB): 10.8 16.2
Attn(dB): 9.6 0.0
Pwr(dBm): 13.1 -5.9
VDSL2 framing
Bearer 0
MSGc: -6 -6
B: 130 97
M: 1 1
T: 0 0
R: 8 8
S: 0.0518 0.1554
L: 21468 5457
D: 16 8
I: 139 106
N: 139 106
Q: 16 8
V: 14 2
RxQueue: 57 39
TxQueue: 19 13
G.INP Framing: 18 18
G.INP lookback: 19 13
RRC bits: 24 24
Bearer 1

Edited by lockyatlrg (Mon 30-Mar-15 16:23:17)

I guess in theory updating firmware in readiness is a good thing - assuming the firmware is decent of course!

I'm surprised you've managed to get BT to attend as your sync is still very decent.
What issue did your ISP report?

Edited by b4dger (Mon 30-Mar-15 15:19:53)

Have already fired off an enquiry about this sort of scenario to get the official word rather than the someone says online answer.

Zen and they are starting to get quite a few calls on this exact issue now, Zen can't even see the line profile data on G.INP lines with ECI modems and it's worrying them a bit.

I use a standard locked ECI modem - I wish BT were more open...

NB. If this is your line both your sig and profile mention BT as your ISP

Edited by b4dger (Mon 30-Mar-15 16:38:05)

Old sig from a while back

Don't forget your TBB profile as well

In reply to a post by lockyatlrg:

Zen and they are starting to get quite a few calls on this exact issue now, Zen can't even see the line profile data on G.INP lines with ECI modems and it's worrying them a bit.

Interesting. My line shows the last speed change occurred on 20th March, but it shows nothing about the two power cuts I have had since that date that naturally caused the modem to drop the connection and then re-sync. I did wonder if somehow the line data was delayed, it seems it's permanently delayed at present!

I have seen my original 80Mbps sync turn into ~74Mbps but because I don't have an unlocked ECI modem I can't see the sync details directly.

I'm pleased that Zen know about this because it gives me confidence that I can ask them and get an answer supplied by people at least partially in the know.

Edited by rippedcotton (Mon 30-Mar-15 17:59:46)

Would like to see their reply when it arrives.

HG612s were slightly slower on my line than an ECI. Update happened and 72 on an ECI dropped to 65 and latency double on the first hop. Forcing an update onto an HG612 has given me back the 72 Mbps (with another issue though) and latency has dropped again. What would an ECI with the right firmware algorithms achieve?

What you show of the stats from the HG612, it looks to be identical to mine on a billion 8800NL.

The BT eng has been out and he already knew about the issue with G.INP and ECI modems and showed me on the internal documentation on his laptop on how to go about fixing it.

They have to come out and perform a line reset which in turn allows the modem to perform an update. My profile reset didn't go to plan as it was being a pain. He had to call someone up at the HQ to force the reset manually, took it a while to stick but I'm back at low ping and full sync on the ECI modem, I don't think the line is running G.INP yet as he said the update to the modem does not happen straight away and takes place over a period of time (late at night)

Mine was the first the engineer has come across and his whole job sheet today is to fix this issue, so it's quite wide spread and BT know about it.

Good to hear and thanks for the update.
The situation for ECI owners doesn't sound ideal!

As I mentioned earlier, I was surprised to hear that you could get an engineer out when your line was still running pretty good.

What error did you/Zen report and were you warned of possible charges from BT?
Thanks.

In reply to a post by lockyatlrg:

Mine was the first the engineer has come across and his whole job sheet today is to fix this issue, so it's quite wide spread and BT know about it.

You'd have thought that live ECI modems - ones sitting and running lines day-in, day-out - would have automatically upgraded weeks ago.

Only 9,000 ECI cab based lines are involved currently and still a trial there

Waiting now on answer to next question now

Zen could see I had a solid 80mb sync for the whole time with them. I told them the truth about G.INP etc and how the ECI modem only connects at 67mb and high ping and the HG612 connects at full sync low ping. Zen where concerned as they could not see my line data profile or my line even having a connection at all on their system. They warned me about BT charges etc but phoned me back and told me they was getting more and more calls on the exact same issue and BT advised an engineer visit was needed and the only way to have the issue fixed currently.

Sounds like that worked out well - I could see your type of issue could have been hard work!

In reply to a post by MrSaffron:

Only 9,000 ECI cab based lines are involved currently and still a trial there

Aren't we talking about ECI modems supplied by Openreach to customers rather than street cabinets?

Openreach in theory believe that ECI modems were handed out only on ECI cabs, pointed out that it was sometimes just what was in the van, and waiting on a response to the follow up question.

The OP eng said they have not had HG612 modems for a good while now and all they use is ECI regardless of cab brand.

My connection went down last Wednesday. Had an OR engineer visit yesterday, all line tests fine, replaced the modem with a brand new boxed HG612 from his van and all was well. Except it needed the firmware/software updating and he seemed a bit clueless there.

I knew the cabinet was G.INP enabled from the stats I could still get from the old one, showing a 60000kbps sync. His JDSU and the new one both gave around 49Mbps sync.

When he'd gone I flashed in the unlocked SP08 and now have the sync's in my sig.

As @lockyatlrg says, I don't think it works like that...
I'm not on an ECI cab.

Edited by b4dger (Tue 31-Mar-15 18:08:51)

As I said I pointed this back out to Openreach, so waiting to see what the answer is.

In a perfect world there would be a nice easy firmware file people could download and install on the ECI, without all the other hacking around involved

I agree. It's pretty daft to locked both HG612 and ECI modem from Openreach.

Edited by adslmax (Tue 31-Mar-15 18:14:16)

In reply to a post by lockyatlrg:

The OP eng said they have not had HG612 modems for a good while now and all they use is ECI regardless of cab brand.

I certainly got an ECI modem on 27th February. Cab is a Huawei 288.

In reply to a post by MrSaffron:

Openreach in theory believe that ECI modems were handed out only on ECI cabs, pointed out that it was sometimes just what was in the van

I work for a computer support/repair company in east kent and our local exchange is all Huawei cabs, but I've only seen ECI modems on customers lines. My own line and the two at the office both have ECI modems on a Huawei cab too. Of all our customer's lines, I've only ever seen 2 Huawei modems, but loads of ECI ones.

In theory maybe, however in some cases, such as mine, they were provided to resolve other problems on the line.

Looks like I've also been affected by a large speed drop and increased latency caused by G.INP and ECI modem. I have a ECI modem which was installed Jan. 2014 by BT when I regraded to FTTC and until Sunday I had a stable 74Mb/s download - 7ms ping. Now I get 63Mb/s and 15-17ms ping.

Normal speed and ping: http://www.speedtest.net/my-result/4200894764

Latest speed test: http://www.speedtest.net/my-result/4258231004

I'm also with Zen internet and and just now sent them an e-mail regarding this issue and how can I get back to normal speed and ping.

Edited by knight01 (Wed 01-Apr-15 19:18:44)

Looks like the update to the modem and reset has not worked at all G.INP back on my line and the modem has not been updated, complete fail from BT!

The speed has dropped and ping is the same as before!

After BT messed and reset the line on the 31st at 9am it was 19999 79996 and 9ms ping with ECI modem

Was fine for 2 days until aprox 7am this morning, now the sync speed is 19999 67920 and 25ms ping with ECI modem

Put the HG612 version 2B SP08 (my friends modem) Speed is 20000 79999 and 12ms ping



Showing when BT came and reset the line and showing perfect line onwards

http://www.thinkbroadband.com/ping/share-large/6bea3...

Showing a perfectly stable line for the day after - happy days

http://www.thinkbroadband.com/ping/share-large/02aeb...

Showing a perfect line again and then the drop at 7am down to 67mb and large increase in ping, the second RED line is when resetting everything and the third RED line is me changing back to the HG612 where ping drops and speed increases.

http://www.thinkbroadband.com/ping/share-large/3e095...

Edited by lockyatlrg (Thu 02-Apr-15 11:12:30)

Think I am a bit slow here, but I have noted a similar issue on my line on the morning of the 31/03/2015:

http://www.thinkbroadband.com/ping/share/7383d3b9c1f...

Interestingly though, my sync speed has actually increased to the highest I have ever seen for my line, but the latency has gone up quite significantly.

19999 64387 66519 TR101 Auto 31-Mar-2015 06:46 31-Mar-2015 06:46

I don't have an unlocked modem so unable to give any more stats on this one. And I can't re-call which make of modem I have though the MAC address of it looks to be vendor: Alcatel-Lucent-IPD

I'm not going to bother forcing a re-sync - I'll just wait and see if it sorts itself out. I plan to be downgrading back to a 40/10 service in May anyway.

Edited by deleted (Thu 02-Apr-15 10:45:24)

Not being funny why ? it is BT's fault that they chose to supply their active NTE's (Modems) in a locked state and also have failed to issue the correct firmware in advance of G.INP roll-out , So why shouldn't they be compelled to fix such issues ?

it's also a direct result of their own stupidity & poor planning that the DLM can't be reset without an engineers visit ,which is overkill & is a waist of a resource . talk about dumb asses bt lead the way with that,
As they supplied me with an ECI modem and it performs better that the huawei i will be seeking a line/DLM reset myself, unless BT are going to compensate me for a modem with a similar chipset as the eci if i have to go and buy one,

Edited by tommy45 (Thu 02-Apr-15 11:42:02)

As I mentioned I'm not happy with the situation for ECI modem owners either.

I was surprised to hear that an engineer attended when the OP was still on a line with a decent connection. I know BT don't like to look at things that are still 'ok' without normally lots of threats of charges etc. You also often read engineers will only get involved when a line has dropped below a certain threshold etc. - hence my surprise

That would be on a individual basis. This is a common problem and it's getting more wide spread.

In reply to a post by b4dger:

As I mentioned I'm not happy with the situation for ECI modem owners either.

I was surprised to hear that an engineer attended when the OP was still on a line with a decent connection. I know BT don't like to look at things that are still 'ok' without normally lots of threats of charges etc. You also often read engineers will only get involved when a line has dropped below a certain threshold etc. - hence my surprise

This is a different thing altogether as it's not been caused by anything other than BT's own incompetence , and customers who were supplied with ECI modems All should be given a DLM reset to enable the modem to upgrade to the G.inp compatible firmware, Some customers have been unable to access the internet in a situation where the modem appears to be in sync but isnt, untill the reset is performed , The engineer who came out to trace a voice fault , was aware to the ECI/Ginp issues and would of reset DLM for me but didn't have my OGEA ID number the problem seems to be with ISP's that seem blind to this issue at the moment that's the hurdle for customers

Hi all, just registered here, sorry if I posted this in the wrong place or something.

I think I'm another having problems with ECI modem on a Huawei cab. Ever since I've had FTTC I always got 40000/9xxx speeds and 11ms pings (although that did go up to 20ms a while back). Just the other day something certainly changed.. Now I seem to have some packet loss at random times, and just noticed my upload speed has halved!? Latency generally seems more unstable too.. The modem has never been moved since it was installed over a year ago. Naturally the only stats I have are from the SR101 router (I'm on Sky).

Modem Status Connected
DownStream Connection Speed 39952
UpStream Connection Speed 5731

Exactly the same problem here, ECI modem on a Huawei cabinet - was syncing at or very close to 80000 but now I'm on 67920 with double the ping.

Emailed Zen and they don't know if G.INP has been enabled on my cabinet and fobbed me off by saying just do a modem reset!

Watching this thread with interest...

The speed is the EXACT same as mine, the tech involved in my case is James. All that we can do now is wait for BT to roll out a modem update, but I doubt that will happen.

In reply to a post by lockyatlrg:

That would be on a individual basis. This is a common problem and it's getting more wide spread.

Did you find some magic words to mention to Zen that helped get this resolved for you?

After emailing Zen regarding the issue yesterday, I received a reply from them.

Zen are aware of the issues affecting ECI modem and G.INP.

Here is the quote from their reply:

"Unfortunately, we are seeing problems being reported when the modem on a line does not support G.INP. These lines automatically have interleaving applied, even if they previously did not require it. This can result in lower sync rates and high latency.

Connecting a device compliant with G.INP should see an improvement. The only Zen supplied device that is not compliant is one type of ECI modem, which would need a firmware update to ensure compliance. Unfortunately you do appear to have this modem on your line."

They said BT are remotely sending out Firmware updates to these devices and will take few weeks to process.

Hope this helps people who are on Zen.

I have a HG612 3B modem and installed the unlocked SP08 firmware (BT Agent untouched and not deactivated), but don't know if I should disconnect ECI and connect the HG612 or wait for the firmware update for the ECI Modem

Edited by knight01 (Thu 02-Apr-15 17:18:12)

In reply to a post by spireites2008:

Hi all, just registered here, sorry if I posted this in the wrong place or something.

I think I'm another having problems with ECI modem on a Huawei cab. Ever since I've had FTTC I always got 40000/9xxx speeds and 11ms pings (although that did go up to 20ms a while back). Just the other day something certainly changed.. Now I seem to have some packet loss at random times, and just noticed my upload speed has halved!? Latency generally seems more unstable too.. The modem has never been moved since it was installed over a year ago. Naturally the only stats I have are from the SR101 router (I'm on Sky).

Modem Status Connected
DownStream Connection Speed 39952
UpStream Connection Speed 5731

Sounds like an issue that is unique to you, with both upstream and downstream sync taking a big hit, certainly the packet loss, has the latency /ping time increased dramatically ?

If it is unstable then it could well be a line problem and not G.INP related.

Certainly in my case and I am guessing most others, when the change happens the line speed and latency are stable with no noticeable packet loss.

Are you able to run the TBB Ping Monitor? http://www.thinkbroadband.com/ping/monitors/create.html

In reply to a post by kadison44:

Exactly the same problem here, ECI modem on a Huawei cabinet - was syncing at or very close to 80000 but now I'm on 67920 with double the ping.

Emailed Zen and they don't know if G.INP has been enabled on my cabinet and fobbed me off by saying just do a modem reset!

Watching this thread with interest...

Has the latency increased by more than the standard 7-8ms ? if it has then it is most likely the case you have been G.imp'ed

For instant results you would use the HG612. If you want an up-to-date ECI ready in case the HG612 dies, as mine did a week ago, you'll leave the ECI connected.

Only you can decide. My choice would be to wait for the update, then a few days later compare the results they both give. There could be a change from how they were pre-G.INP.

In reply to a post by knight01:

After emailing Zen regarding the issue yesterday, I received a reply from them.

Zen are aware of the issues affecting ECI modem and G.INP.

Here is the quote from their reply:

"Unfortunately, we are seeing problems being reported when the modem on a line does not support G.INP. These lines automatically have interleaving applied, even if they previously did not require it. This can result in lower sync rates and high latency.

Connecting a device compliant with G.INP should see an improvement. The only Zen supplied device that is not compliant is one type of ECI modem, which would need a firmware update to ensure compliance. Unfortunately you do appear to have this modem on your line."

They said BT are remotely sending out Firmware updates to these devices and will take few weeks to process.

Hope this helps people who are on Zen.

I have a HG612 3B modem and installed the unlocked SP08 firmware (BT Agent untouched and not deactivated), but don't know if I should disconnect ECI and connect the HG612 or wait for the firmware update for the ECI Modem

I wouldn't hold my breath on that happening , as according to a BT openreach source engineers are having to order a DLM reset to remove the G.inp before the modem is able to recive a firmware upgrade remotely, Unless they are planning to reset all lines that are on Huawei cabs ? as there is probably no way for them to know what modem is in use , of course ISP's are scared of getting charged by OR for a right when tested visit results

I would connect the HG612 now and when the forums start saying an ECI update is available, reconnect the ECI to get it updated.

Are you saying you have had the ECI modem updated?

I really can't see why BT can't create the update, put it in a file and the end user can do it..

Cheers Knight01 good to know something's being done.

As I understand things (via friendly BT bod on Kitz, and I'm starting to sound like a cracked record) it goes like this. BT auto update ECI modem firmware and then enable G.INP (if required). From this point non-updated ECI firmware will no longer work which can only be sorted by having the DLM reset.

So in theory, I don't think what you are suggesting will work unless the timing is spot on...

In reply to a post by lockyatlrg:

I really can't see why BT can't create the update, put it in a file and the end user can do it..

Will people be able to do this if their ECI modem is locked though?

BT have supplied zillions of ECI modems to customers, they MUST have thought all of this through?

That's what I was going to point out. Once the forums start reporting it, any particular user's line may already have been re-done.

In reply to a post by lockyatlrg:

Are you saying you have had the ECI modem updated?

I thought I kept saying I had, and received, an HG612?

All you have to do then is request a DLM reset so the modem updates - one more step.

According to MrSaffron earlier, BT think they only rolled out ECI modems to people on an ECI cabinet, so who knows?

It seems my problem was perhaps unrelated afterall. About an hour ago my connection seemed to die, at this point I was fed up so I unplugged my router and then the modem too, left it for a few minutes and now have the following speeds:

Modem Status Connected
DownStream Connection Speed 39952
UpStream Connection Speed 8290

I should say I am on a 40mb package, I will monitor packet loss etc with a TBB graph.

In reply to a post by spireites2008:

I should say I am on a 40mb package, I will monitor packet loss etc with a TBB graph.

You are probably on a dynamic IP so when teh IP address changes you will loose the monitor, however, you should delete teh old one and start a new one each time. A bit fiddly but it will give you the data.

I've read (right or wrongly) that a DLM reset can't be done remotely?! So perhaps not so straightforward...

So maybe you need an engineer visit? As you know from Kitz, it's an easy fix - reset the DLM, modem updates.

If you have a backup modem, now is the time to use it

Usually it can be done remotely unless, like the cabinet I'm connected to, the DSLAM doesn't respond to any remote requests so it has to be done at the cabinet.

The engineer does not have access to the FTTC cabinet. Only to the PCP.

AIUI it used to be a phone call from the engineer to some central place, but I think the last time I said that was the method I was told they could now do it remotely. But only an engineer can trigger it, once sure there are no faults on the line.

In reply to a post by MrSaffron:

Openreach in theory believe that ECI modems were handed out only on ECI cabs, pointed out that it was sometimes just what was in the van, and waiting on a response to the follow up question.

But they completely stopped ordering modems from Huawei and told engineers to use ECI modems on any cabinet.

Just to clear this up for me (Please!)...

In my case the HG612 modem restores full speed with G.INP now enabled, to get the ECI back to full speed I would need a DLM reset or does the ECI not yet fully support G.INP which is why I see "interleave" like symptoms on my connection with it in use?
If a DLM reset was done with the HG612 connected would that leave my ECI modem without it's update?

Sorry...I am trying to keep up!

In reply to a post by b4dger:

I've read (right or wrongly) that a DLM reset can't be done remotely?! So perhaps not so straightforward...

It is technically possible for a DLM reset to be done remotely, but as it stands the problem seems to be the route used to implement a DLM reset is via an engineer, who is tasked via the normal faults malarkey, An open reach engineer can apparently carry out this task using what is basically a smart phone without asking anyone they have automated the process at that level, so all it would need is at the very least is for openreach and wholesale to work together on this and the result would be the isp being able to simply place the order for a dlm reset just as they do for other things, personally imo they should go further and give access to isp's so they can perform dlm resets,

In reply to a post by D_an_W:

Just to clear this up for me (Please!)...

In my case the HG612 modem restores full speed with G.INP now enabled, to get the ECI back to full speed I would need a DLM reset or does the ECI not yet fully support G.INP which is why I see "interleave" like symptoms on my connection with it in use?
If a DLM reset was done with the HG612 connected would that leave my ECI modem without it's update?

Sorry...I am trying to keep up!

You are in the same position as me and no doubt thousands of others, G.inp is active on my circuit , i am currently using a unlocked HG612 with a slightly older fw version that also works with BT's Gimp ,lol so we all will need a dlm reset so that the eci modem can function properly again, so enabling it (In theory ) to download/upgrade it's FW , followed by dlm re enabling it's gimp if it so desires

I say in theory because there as far as i know 2 versions of the ECI modem, and someone on the BT community forums is claiming to of had a dlm reset ,but the modem failed to dl & upgrade its fw, and dlm just re enabled it's gimp so that customer is no better off, so it raises questions ?? maybe the older version is not G.inp compatible or the fw they are pushing isn't with that version of eci modem this is the type of issue that can arise from BT supplying locked modems

Edited by tommy45 (Thu 02-Apr-15 21:03:15)

Firstly, thanks to all who have provided info on this thread - it has been a great help to me today. I've had Sky Fibre Pro since March 2013 & it has always been rock solid, with a downstream connection speed of 80000 & speed test results between 72mb - 75mb download.

Anyway, I went on holiday 2 weeks ago & put up with horrendous hotel WiFi, so was looking forward to returning to my normal broadband. Got back home this morning, ran a speed test (it is a daily addiction!) & noticed I could only achieve around 55mb max. Somewhat perplexed, I logged into the Sky Router & noticed that my Download Connection Speed had reduced to 67920, so phoned Sky, but got nowhere - they just got me to reset the modem & hub (which made no difference), then told me that my speed was still within range & that speed could be impacted by distance from exchange & cabinet...I did explain that the exchange/cabinet/house were still in the same place that they were before I went on holiday : )

It is only after finding this thread that I now know the cause of the speed drop. I have an ECI Openreach modem & Sky SR101 hub. The cabinet I am connected to is Huawai. I've been considering ordering a Sky SR102 hub for a while, mainly to reduce the clutter of broadband kit/cables (I have an Apple Airport Express in the mix too). Can anyone tell me if replace the ECI modem & SR101 with the 'all in one' SR102' will I get back the full download connection speed? Is the SR102 G.INP ready/compatible? If so, would changing to the SR102 alone be sufficient, or would Openreach need to manually reset my line?

In reply to a post by NGA:

Firstly, thanks to all who have provided info on this thread - it has been a great help to me today. I've had Sky Fibre Pro since March 2013 & it has always been rock solid, with a downstream connection speed of 80000 & speed test results between 72mb - 75mb download.

Anyway, I went on holiday 2 weeks ago & put up with horrendous hotel WiFi, so was looking forward to returning to my normal broadband. Got back home this morning, ran a speed test (it is a daily addiction!) & noticed I could only achieve around 55mb max. Somewhat perplexed, I logged into the Sky Router & noticed that my Download Connection Speed had reduced to 67920, so phoned Sky, but got nowhere - they just got me to reset the modem & hub (which made no difference), then told me that my speed was still within range & that speed could be impacted by distance from exchange & cabinet...I did explain that the exchange/cabinet/house were still in the same place that they were before I went on holiday : )

It is only after finding this thread that I now know the cause of the speed drop. I have an ECI Openreach modem & Sky SR101 hub. The cabinet I am connected to is Huawai. I've been considering ordering a Sky SR102 hub for a while, mainly to reduce the clutter of broadband kit/cables (I have an Apple Airport Express in the mix too). Can anyone tell me if replace the ECI modem & SR101 with the 'all in one' SR102' will I get back the full download connection speed? Is the SR102 G.INP ready/compatible? If so, would changing to the SR102 alone be sufficient, or would Openreach need to manually reset my line?

i think TP link make a Gimp compatible modem as do fritzbox both have a similar lantiq chipset to the eci openreach modem and i know that the fritz at least is G.inp and G vector compatible so future proof, or you could go the other route and buy a VDSL modem router that has a Broadcom chipset such as one of the billion 8800 series modem /router one box solutions or a second hand huawei hg612 3b bt openreach modems from off e bay and flash with firmware that also unlocks it so you can see what is going on

Whats the difference between 2b and 3b hg612 modems?

I know the engineer can't access the FTTC cab.

I was just pointing out that the DSLAM in the fibre cab I'm connected to doesn't appear to respond to remote requests. When an OR engineer came and sorted out a fault on my line he tried several times to do a DLM reset remotely from the app on his phone but it didn't work. He also phoned wherever and requested a reset but didn't work either.

Someone else came out a few days later and did the reset at the fibre cab.

The 3Bs are the ones that were modified to reduce the failure rate from overheating. Prior to the 3B, and possibly even now but largely ignored, once the problem became very obvious a standing instruction was given to the engineers to wall-mount them to improve the air circulation.

Proving the point really. He expected it to work, and also the call to base to work. Simply an issue at your cab that neither did.

Edited by RobertoS (Fri 03-Apr-15 00:08:40)

On 31/03/2015 my measured download dropped from 75 Mb/s to 63 Mb/s and the ping increased from 12 ms to 25ms, after 4 months of downlad speeds between 73 Mb/s and 75MB/s.. I had an ECI open reach modem connected to Talk Talk Super router (Huawei HG635).I used the ECI modem with the Super router because the download speed was slightly faster than just using the Super router as a modem router. I called talk talk technical support and I was told that my line sync rate was 67 Mb/s so my measured download speed is within acceptable limits. So I decided to make some changes. I switched off the modem & super router for a couple of hours and then reconnected the DSL cable directly to the Super Router. Now my sync speed is 80/20 slightly better than the original Super router sync speed of 77/20. My measured download speed is now consistent at 75.2 Mb/s and the ping is back to 12 ms. It's obvious G.INP has been enabled at my cabinet, it's a pity the talktalk technical support are clueless about this as well as some other technical issues. Here is a link to an article about the deployment of G.INP.

G.INP, the New Fibre Broadband Enhancement Arrives

On 31/03/2015 my measured download dropped from 75 Mb/s to 63 Mb/s and the ping increased from 12 ms to 25ms, after 4 months of downlad speeds between 73 Mb/s and 75MB/s.. I had an ECI open reach modem connected to Talk Talk Super router (Huawei HG635).I used the ECI modem with the Super router because the download speed was slightly faster than just using the Super router as a modem router. I called talk talk technical support and I was told that my line sync rate was 67 Mb/s so my measured download speed is within acceptable limits. So I decided to make some changes. I switched off the modem & super router for a couple of hours and then reconnected the DSL cable directly to the Super Router. Now my sync speed is 80/20 slightly better than the original Super router sync speed of 77/20. My measured download speed is now consistent at 75.2 Mb/s and the ping is back to 12 ms. It's obvious G.INP has been enabled at my cabinet, it's a pity the talktalk technical support are clueless about this as well as some other technical issues. Here is a link to an article about the deployment of G.INP.

My Speedtest

G.INP, the New Fibre Broadband Enhancement Arrives

Edited by deleted (Fri 03-Apr-15 08:00:17)

Same as myself and many more it seems, previously the ECI modem / Huawei cabinet combo gave slight better performance than the H/H combo but after G.INP is enabled the ECI is no longer the better of the two.

As someone mentioned previously, I wonder if it was originally the intention of OpenReach to supply a Huawei modem if on a Huawei cabinet and vice versa which would have probably prevented these issues but it instead turned to a "whatever was in the van" approach.

Edited by D_an_W (Fri 03-Apr-15 08:12:21)

So I am fairly sure my modem is ECI, looking at the rear of the unit and comparing it with the HG612.

What are my options here?

1) Wait until the modem firmware is upgraded by BT?
2) Or can the problem be fixed with a DLM reset?
3) Contact Zen support and get their input?
4) Wait until May when I plan to downgrade to 40/10, which should force a DLM reset anyway and hopefully bring things back to how they were latency wise?

Any advice much appreciated.

@NGA - I was in same boat as you. I can confirm that the SR102 works absolutely fine and gave me back full sync/speed. Im on a HUAWEI cab and had reduced sync and speed on the SR101 down from 79.9 sync to 67.9. When SR102 came I dropped the SR101 and openreach ECI modem for an hour, hooked up the SR102 then powered up and all worked ok. Sky initially were dismissive about the issue, but the kind lady at sky tech support offered me the SR102 for £29.99.


Just thought id register to let you know the frustrating part at the moment is getting any tech support desk to take the issue seriously. Would help if a site with some weight behind it like thinkbroadband took up the issue with BT and or the isp providers.

Edited by deleted (Fri 03-Apr-15 10:31:48)

MrS as usual openreach talking out their [censored]. I had fttc fitted in 2013 by kellys and I had an ECI given me for a HUAWEI cab. Worked flawless up unti9l G.INP started rolling out

@mixt - Looks like currently due to BT being quiet on the issue and ISP tech desks having no clue on the issue and will fob you off to say your speed is still within profile, only options are

1) Get a vdsl combined modem/router proven to work - btw what equipment are you using at the moment ?

2) get hold of an Openreach HG612 on SP08 firmware that works correctly with G.INP

Edited by deleted (Fri 03-Apr-15 10:31:27)

In reply to a post by fibrecereal:

1) Get a vdsl combined modem/router proven to work -

Is there a list of vdsl combined modem/routers proven to work with G.INP?

I would just buy an el-cheapo HG612 off ebay and flash it with Build C030 SP08 firmware and Bobs yer mothers brother. It should restore your sync speeds & pings. Then you can bin your ECI junk for good.

http://www.ebay.co.uk/itm/Bt-open-reach-modem-echoli...

http://www.kitz.co.uk/routers/hg612unlock.htm

In reply to a post by fibrecereal:

btw what equipment are you using at the moment ?

I've taken another look (had to get a torch out as all my equipment is in a small dark cupboard with lots of wire mess around) and I have confirmed, based on the positioning of the ports at the back, that it is an ECI modem.

For everything else routing wise, I use my own equipment (separate Linux box, wireless access points etc).

So you're saying even with a downgrade to 40/10, I'll still have this latency issue with this modem simply because they've upgraded my cabinet with G.INP and not actually confirmed that this standard works with end user modems like mine? The ECI?

Insane.

Well, time to look at a replacement modem (that supports bridge configuration) I guess. I was going to try my chances with Zen upon my downgrade and possibly get the free Technicolor combi router/modem they are offering with new packages just now, and try and convert it to run in bridge mode, but I've read that it's a pretty hideous piece of equipment in general.

So looks like it might be a basic Billion job or something instead. I'll have a read up on it all.

To be honest, if I had some confidence that this issue was going to get resolved any time soon, I might not feel as bad. But we are talking about BT here, and I'm pretty sure they have moved to the stance now of not being responsible for the end user modem anymore. Have a read of this: http://www.revk.uk/2014/10/bt-losing-plot-on-fttc.html

They are changing the service to wires only where they will not "support" the modem they provided.

So I reckon they've done this without a care in the world, to be blunt. And they are just going to leave it up to the end user to now sort out the mess and deal with replacing the modem if they see fit.

I'm a bit disgusted really but highly expected. Still glad I didn't go with them directly for my broadband.

In reply to a post by fibrecereal:

@NGA - I was in same boat as you. I can confirm that the SR102 works absolutely fine and gave me back full sync/speed. Im on a HUAWEI cab and had reduced sync and speed on the SR101 down from 79.9 sync to 67.9. When SR102 came I dropped the SR101 and openreach ECI modem for an hour, hooked up the SR102 then powered up and all worked ok. Sky initially were dismissive about the issue, but the kind lady at sky tech support offered me the SR102 for £29.99.


Just thought id register to let you know the frustrating part at the moment is getting any tech support desk to take the issue seriously. Would help if a site with some weight behind it like thinkbroadband took up the issue with BT and or the isp providers.

@fibrecereal - cheers for the info on the SR102 & the offer you received from Sky. Just spoke to Sky again & explained about the ECI modem/asked for the SR102 at a reduced price. They have sold me the SR102 at £29.95 (plus £6.95 delivery). Happy to have a fix to the problem, but it is not really acceptable that we have to pay anything! As you mentioned, would be great if someone like thinkbroadband (or ISPreview?) could take this issue up further with BT & the ISP's.

Hi NGA

Just to confirm -

http://www.thinkbroadband.com/speedtest/button/14280...


And this is what the SR102 is on firmware wise -

http://i.imgur.com/USai23Z.jpg

I agree its frustrating as it seems ISPs and tech support desks are not aware of the problem.

Edited by deleted (Fri 03-Apr-15 11:27:48)

Does it have to specifically be Build C030 SP08 ? I note on the Kitz site, hg612_unlocked_sp10_firmware is mentioned.

Cheers.

Came across this earlier this morning

https://community.bt.com/t5/BT-Infinity-Speed-Connec...

Cant confirm personally as I don't have any HG612 to test with.

In reply to a post by mixt:

Does it have to specifically be Build C030 SP08 ? I note on the Kitz site, hg612_unlocked_sp10_firmware is mentioned.

Cheers.

If you want the latest HG612 fw which is compatible with G.INP then yes you need Buiild 30, SP08. SP10 is from an older build (28) and doesn't support G.INP. Going from old to new:

B027SP06 or v27.06
B028SP10 or v28.10
B030SP06 or v30.06
B030SP08 or v30.08

https://mega.co.nz/#F!LdJFDIJL!e_E1twsIg2kTet8mPjrb4w

Thanks!

So I think my plan to attempt to sort this mess out will be as follows.

1) Downgrade with Zen in May back to 40/10. This kicks off a new 12 month contract, and will kick off a DLM reset/retrain period. I don't expect this to solve any of this G.INP nonsense however as the ECI modem I have is obviously not compatible with G.INP. If, however, it does, I'll probably just stick with my existing ECI modem. Maybe BT will push out a firmware update to all ECI modems by then (and pigs might also fly).

2) Request during the downgrade order process, and as part of ordering a brand new package/contract, that Zen ship me out their free £60 Technicolor TG589vn v3 modem/router, which according to this, does support G.INP.

3) Figure out how to put the thing into bridge mode. Found this (all be it foreign).

4) Hope all that works and I can sync back at 40/10 with normal latency again using the Technicolor TG589vn v3.

5) If none of the above works, I will look at the HG612 route.

I've added this thread to my favourites - will update again in May once I downgrade (for those who are interested on the outcome).

Ta.

Edited by deleted (Fri 03-Apr-15 13:28:56)

In reply to a post by mixt:

But we are talking about BT here, and I'm pretty sure they have moved to the stance now of not being responsible for the end user modem anymore. Have a read of this: http://www.revk.uk/2014/10/bt-losing-plot-on-fttc.html

On Monday an OR engineer replaced my HG612 with another (brand new), with no quibble. His suggestion in fact, as he couldn't find any reason I couldn't connect with my ISP despite having a G.INP connection to the cabinet.

I have the same problem since 31st march.

latency doubled and sync down to 65Mbit

Is BT actually doing anything to sort this mess out? Do they even have a firmware update for the ECI modem?

Really bad packet loss it seems tonight for me, at least on the graph

http://www.thinkbroadband.com/ping/share/c1f104a91a6...

I know it's kind of off-topic, sorry.

I think you have hit the nail on the head and from my experience it was always better to have the same BCM chipset matched with the BCM Huawei cabinet.

In reply to a post by spireites2008:

Really bad packet loss it seems tonight for me, at least on the graph

http://www.thinkbroadband.com/ping/share/c1f104a91a6...

It's hard to say what the cause of this is, other than it's not a generic problem with the thinkbroadband BQM platform. My BQM shows no packet loss, though I'm using a different ISP with different backhaul, I'm probably on a different exchange to you, and I have a (locked, so it should get firmware updates from Openreach) HG612 modem.

In reply to a post by D_an_W:

if it was originally the intention of OpenReach to supply a Huawei modem if on a Huawei cabinet and vice versa which would have probably prevented these issues but it instead turned to a "whatever was in the van" approach.

I think it turned into "fit an ECI modem and put the Huawei on Ebay"

In reply to a post by BatBoy:

In reply to a post by D_an_W:

if it was originally the intention of OpenReach to supply a Huawei modem if on a Huawei cabinet and vice versa which would have probably prevented these issues but it instead turned to a "whatever was in the van" approach.

I think it turned into "fit an ECI modem and put the Huawei on Ebay"

I don't think some Openreach Engineers knew the difference from a ECI Cab and Huawei Cab a lack of training i guess.

Edited by deleted (Fri 03-Apr-15 20:15:43)

They don't have to. They just look at the cardboard box with the modem in.

In reply to a post by MrDiode:

In reply to a post by BatBoy:

In reply to a post by D_an_W:

if it was originally the intention of OpenReach to supply a Huawei modem if on a Huawei cabinet and vice versa which would have probably prevented these issues but it instead turned to a "whatever was in the van" approach.

I think it turned into "fit an ECI modem and put the Huawei on Ebay"

I don't think some Openreach Engineers knew the difference from a ECI Cab and Huawei Cab a lack of training i guess.

Quite possibly, or even/also that some Openreach Engineers did not realise that the modem was being manufactured by both ECI & Huawei and that it was 'pot luck' as to what was taken off the van/out of the box.

In my case, for 2 years, I thought I had a Huawei modem. At point of install, I recall the cardboard box that the engineer took the modem out of having the Huawei name/logo on the outside & being pleased that I was receiving a modem that matched the cabinet (being a 'geek', I had done my research ahead of install!). The modem was wall mounted by the engineer (behind my TV), so I've never bothered to take the modem off the wall....until this week. After stumbling across this thread, whilst trying to find out why my download speed had dropped & ping had increased, the evidence pointed towards me having an ECI modem...so I took the modem off the wall to take a closer look & yes, it was an ECI modem...despite being brought into my home in a Huawei box!

In reply to a post by MrDiode:

I don't think some Openreach Engineers knew the difference from a ECI Cab and Huawei Cab a lack of training i guess.

I expect they did/do. The Kelly's and Quinn's one almost certainly didn't.

In some cases of all three there is every chance they didn't even see the FTTC cabinet. It might not have been immediately and obviously visible.

In reply to a post by MrDiode:

I think you have hit the nail on the head and from my experience it was always better to have the same BCM chipset matched with the BCM Huawei cabinet.

I was wondering what broadcom chip on the dslam cabinet?

In reply to a post by tommy45:

In reply to a post by D_an_W:

Just to clear this up for me (Please!)...

In my case the HG612 modem restores full speed with G.INP now enabled, to get the ECI back to full speed I would need a DLM reset or does the ECI not yet fully support G.INP which is why I see "interleave" like symptoms on my connection with it in use?
If a DLM reset was done with the HG612 connected would that leave my ECI modem without it's update?

Sorry...I am trying to keep up!

You are in the same position as me and no doubt thousands of others, G.inp is active on my circuit , i am currently using a unlocked HG612 with a slightly older fw version that also works with BT's Gimp ,lol so we all will need a dlm reset so that the eci modem can function properly again, so enabling it (In theory ) to download/upgrade it's FW , followed by dlm re enabling it's gimp if it so desires

I say in theory because there as far as i know 2 versions of the ECI modem, and someone on the BT community forums is claiming to of had a dlm reset ,but the modem failed to dl & upgrade its fw, and dlm just re enabled it's gimp so that customer is no better off, so it raises questions ?? maybe the older version is not G.inp compatible or the fw they are pushing isn't with that version of eci modem this is the type of issue that can arise from BT supplying locked modems

I don't know if this is the best post to reply to, but here goes ...

Beware that most people are working from false information, and applying poor logic to it.

Firmware Upgrade Process
The DLM reset does not cause an upgrade to the firmware of any modem. ECI or Huawei. Full stop.

The firmware should get upgraded when the modem is synchronised, and when the BT agent realises that new firmware is available. It ought to happen overnight, any time that the modem has synchronisation.

If a modem has synchronised, that ought to be sufficient for firmware upgrades to happen. If the firmware upgrade does not happen, then the BT agent is not doing its job correctly.

Openreach-Expected behaviour
Openreach originally expected ECI modems (that had not been upgraded) to fail to synchronise at all - which would render the BT agent unable to ever pull down a new firmware version to upgrade.

The only reason that BT Openreach said a DLM reset was needed was to allow the ECI modems to synchronise. That is all.

Once the modem had synchronised, they expected normal behaviour from the BT agent - that it would upgrade the firmware.

Its is only under these precise circumstances, that the ECI modem fails to synchronise, that it is worth performing a DLM reset. And the only result to be expected from the DLM reset is to allow the synchronisation to complete properly.

Actual ECI Modem behaviour with G.INP
It looks like ECI modems actually synchronise when G.INP is activated, but with a reduced speed and increased latency.

Aside: ironically, this behaviour is exactly what Huawei modems do when they have incompatible firmware too. However, we have ways to manually fix the errant Huawei's.

Because the ECI modems synchronise, the BT agent should be able to work as normal, and upgrade the firmware if available. They should be able to do this whatever the cause of low speeds/high latency - whether the changes are because of old-style DLM intervention, or because of new-style G.INP activation.

Unfortunately, it looks like the ECI modems fail to upgrade themselves. This happens whether they are running on a fresh line, with a recent DLM reset, or a line that G.INP has been activated on.

Root Cause
The root cause of the problem is that the ECI modems have failed to upgrade automatically, whether they have been sitting in the back of a van, or have been connected perfectly for 6 months.

The failure for this must come down to the BT agent in some way, and BT must find out what this is.

In the meantime, a DLM reset is not a solution.

Options
BT need to figure out why the ECI modems are failing to upgrade automatically.

Until they do this, you have three choices:
a) Leave the ECI modem in place, and put up with lower speeds
b) Get a Huawei. If it doesn't immediately fix the issue, flash it with the newest firmware (B030SP08 at present)
c) Get a third-party modem> perhaps a combined modem/router, such as the Billion 8800NL.

I was telling folk exactly that in the zen section. Getting the ECI modem updated via BT Agent is all hopes and dreams to be honest.

I think you all missing the point here, most of the FTTC ECI cabinets have not been G.INP enabled and the ECI modem will not get the firmware updated until the ECI cabinet gets it's G.INP firmware/software installed, the ECI cabs are still in the very early stages of the G.INP rollout..

Thanks WWWombat!

MrDiode, that would suggest that it is only ECI cabinets that are capable of updating ECI modems. What about those people who are on Huawei cabinets and were supplied ECI modems?

The update doesn't come from the cabinet. BT apparently believe that modems were issued to match the cabinet.

In reply to a post by D_an_W:

Thanks WWWombat!

MrDiode, that would suggest that it is only ECI cabinets that are capable of updating ECI modems. What about those people who are on Huawei cabinets and were supplied ECI modems?

Thats were this issue of higher pings and slower thoughput comes into play when using a ECI modem with old firmware on a Huawei cabinet after G.INP is enabled

basically the ECI modem is unable to use the extra parameters the Huawei has for G.INP and so this makes the ECI modem slightly incompatible

The same goes for older firmware on a HG612 if the user has selected the no-btagent which blocks the new firmware updating on a G.INP enable Huawei cabinet the modem will not be able to use G.INP.

In reply to a post by BatBoy:

The update doesn't come from the cabinet. BT apparently believe that modems were issued to match the cabinet.

So how can we disabuse them of this notion?

The ECI modems will never get an update connect to a huawei cab.

Post deleted by AkAnic

To get an update, there just has to be a new firmware to update with

On a HUAWEI HG612 that's easy enough, but on an ECI modem its locked down so you cant update it. Now do people appreciate the issue ? now see why it is a massive issue ?

That's what BTAgent does, and PTM301

In reply to a post by fibrecereal:

On a HUAWEI HG612 that's easy enough, but on an ECI modem its locked down so you cant update it. Now do people appreciate the issue ? now see why it is a massive issue ?

Seeing as the HG612 is also locked down, your logic says that Openreach can never roll out G.INP with replacing them all with updated ones.

But again Robertos, yes its pure guessing on my part here, nothing has been confirmed nor have I seen any evidence to prove this, but what if ECI modems need an ECI cab to update, people on HUAWEI cabs would never see their speed return.

HG are easy to hack unlike ECI where you need to solder the mainboard of the modem. At least that's what Ive read ? you may well no better than me but at least with an HG612 you stand a chance of fixing the issue.

Edited by deleted (Sun 05-Apr-15 13:48:15)

In reply to a post by fibrecereal:

what if ECI modems NNED an ECI cab to update

My HH5 happily updated it's firmware, not caring about the cab.

homehub 5a or 5b ? Huawei cab or eci cab ?

HH5A and Huawei cab. I mean firmware .204, not a fix for G.Inp.

Hey Bat,

Ah sorry I understand now, im not familiar with the HH5A, does it work correctly with G.INP now ?

Specifically I was talking about standalone ECI modems which have no chance in getting an update due to being locked down (ECI modem is the BT white openreach box)

No, my HH5A has reduced sync and interleaving on. It is also locked down but gets it's firmware updated in the same way a locked ECI modem or lHuawei HG612 does - via PTM 301 or BTAgent.

Is there anyway to tell, through the UI, whether G.INP is active on the HH5?

I had a weird issue... it happily synced at 57Mb for months then went down to 49Mb and interleaving was quite evident, then 2 days later it was back up at 61Mb and no-interleaving. Probably not G.INP, cause I'm on an ECI cabinet, but I was curious.

Not that I can see.

I wonder if vlowen (of RouterStats for HH5) is using telnet for them and could help? In some versions there is a telnet tab, but not showing on this page. Unless he's moved it into "Advanced".

No, it uses the web page. No telnet access on the HH5A.

Edited by deleted (Sun 05-Apr-15 15:20:44)

I connected the HG612 with unlocked B30SP08 firmware and got my speed and ping back to before this issues started.
New speed test with HG612 connected: http://www.speedtest.net/my-result/4271409499
Speedtest with ECI modem: http://www.speedtest.net/my-result/4258231004

I'm on a Huawei cab and won't be going back to a ECI modem anytime soon.

These are my stats: http://i.imgur.com/LAuGhDU.jpg

I donno where this myth that the ECI rev /r modem has significantly lower latency connection comes from. On my local ECI cab the difference in my test on my current fast path line, It's less than 1ms every so slightly in favor of the ECI about .3-.4ms on average.This is the case as long as you disable the firewall and QOS on the HG612.


However the band plan is slightly different. the ECI tends to have a bit loading in favor of upstream, the HG612 with bp30sp08 in favor of Downstream, I've found that I get lower error rates with the HG612 too. I've been more prone to getting interleaving switched back on with the ECI!!!

Edited by Ragnarok (Tue 07-Apr-15 22:56:53)

Who mentioned lower latency ? the issue was with ECI on HUAWEI cabs causing increased latency and lower sync speeds due to incompatible firmware and G.INP :/

In fact, "considerably increased latency" and "considerably lower sync speeds" .

I don't know if it's been said, but the same applies to HG612's that haven't been updated. Such as the one I got the other day from OR van stock when mine failed.

Oh dear...connected an unlocked HG612 (fw B030SP08) to replace my ECI modem and speeds & ping are still the same Instead of syncing at 80000kbps like i was a few weeks ago & with ping times of 25ms, i 'm still getting ~65 meg and with pings of nearly 40ms.

Based on my stats i should be synced at the full 80 meg, correct?

http://www.imageupload.co.uk/image/ZEEQ

It seems my cab (100% sure its Huawei) has not had G.INP applied as i don't see Bearer 1 in stats so therefore my loss of speed is probably down to crosstalk.

I thought all Huawei cabs had been upgraded to G.INP at end of March?

http://www.imageupload.co.uk/image/ZE4B

Please post the output from cmd: xdslcmd info --pbParams

# xdslcmd info --pbParams
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Last initialization procedure status: 0
Max: Upstream rate = 31957 Kbps, Downstream rate = 83368 Kbps
Bearer: 0, Upstream rate = 19999 Kbps, Downstream rate = 68579 Kbps

Discovery Phase (Initial) Band Plan
US: (7,32) (871,1205) (1972,2782)
DS: (33,859) (1216,1961) (2793,3970)
Medley Phase (Final) Band Plan
US: (7,32) (871,1205) (1972,2782)
DS: (33,859) (1216,1961) (2793,3970)
VDSL Port Details Upstream Downst
ream
Attainable Net Data Rate: 31957 kbps 83368 kbps
Actual Aggregate Tx Power: 0.9 dBm 12.8 dBm
================================================================================
====
VDSL Band Status U0 U1 U2
U3 U4 D1 D2 D3
Line Attenuation(dB): 3.1 14.3 20.8 N/A N/A 8.0 17.6
26.9
Signal Attenuation(dB): 3.1 13.6 20.4 N/A N/A 9.2 17.5
27.0
SNR Margin(dB): 11.0 10.8 10.9 N/A N/A 6.1
6.1 6.1
TX Power(dBm): -13.6 -29.2 0.7 N/A N/A 8.9
7.8 7.1
#

It will take a day or so for G.INP to be applied to the line mate, seen it a few times on Kitz, don't worry Leave the HG612 in place and G.INP will come.

I think that confirms you're on a Huawei alright. Maybe the roll out isn't finished?

I suspect you have interleaving on.

We could do with the output from xdslcmd info --stats

Include the long list of error stats at the end please so we can see a bit about the error rates. (xdslcmd info --show doesn't give those and are what I normally ask for).

http://forum.kitz.co.uk/index.php/topic,15295.0.html...

See his post.

In reply to a post by BatBoy:

No, my HH5A has reduced sync and interleaving on. It is also locked down but gets it's firmware updated in the same way a locked ECI modem or lHuawei HG612 does - via PTM 301 or BTAgent.

Same here I have had to move back to a Huawei modem I purchased to gain full sync... not the all in one solution I wanted though...

Maybe the roll out isn't finished?

Definitely not finished yet, a FTTC connection I manage has an uptime of 90 days (eci modem, huawei cab), ping graph showing average 23ms ping; I am keeping an eye out for an increase.

Location: Haverfordwest, Pembrokeshire CAB20.

Ian

In reply to a post by lockyatlrg:

It will take a day or so for G.INP to be applied to the line mate, seen it a few times on Kitz, don't worry Leave the HG612 in place and G.INP will come.

Seems my line decided to change to G.INP at 3am yesterday. This reduced latency from about 28ms to about 18ms and increased sync from 73628/19854 to 79999/20000.

I swapped to an unlocked HG612 a few days ago, I don't know what would happen if I put the OR-supplied ECI back on and am not intending to do anything to find out right now.

As far as I can tell I am not yet on GEA-FTTC from Zen, it's still going via some BT/OR kit. Maybe once that changes the latency will reduce further, I know others are reporting <12ms latency.

Woop Woop! Finally got my old speed & pings back this morning:

http://www.imageupload.co.uk/image/ZEkx

http://www.speedtest.net/my-result/4283557688

http://www.thinkbroadband.com/ping/share/5dca31b2cdb...

Ignore the 3 large red chunks that was just me faffing around with the Asoooos router

Edited by deleted (Sun 12-Apr-15 10:54:29)

Slight change of plan.

Since the HG612 was going on eBay for around £20, I couldn't resist. Snapped one up last week.

Arrived today, applied SP08 firmware (with webgui support) and looks like my latency is now back to normal.

Also, as if the line didn't sync fast enough with the ECI modem (66519 kbps), the sync this HG612 has now managed to obtain is:

Text
1 23 45 67 8	# xdslcmd info xdslcmd: ADSL driver and PHY statusStatus: Showtime Retrain Reason: 0Last initialization procedure status:   0 Max:    Upstream rate = 29083 Kbps, Downstream rate = 65340 KbpsBearer: 0, Upstream rate = 20000 Kbps, Downstream rate = 68791 Kbps Bearer: 1, Upstream rate = 0 Kbps, Downstream rate = 0 Kbps

Question: How can the sync speed (68791) be greater than the max downstream rate (65340) ?

The max downstream rate is calculated from the SNR margin, so I think the noise was less when the modem synced than it is now.

In reply to a post by mixt:

...
2) Request during the downgrade order process, and as part of ordering a brand new package/contract, that Zen ship me out their free £60 Technicolor TG589vn v3 modem/router, which according to this, does support G.INP.
...

Turns out the above only applies to new installs. So just as well I ordered the Huawei HG612 a few weeks ago, to replace my ECI.

I think Zen should make that clear on their site. It says nothing about "new installs" only; the only thing it mentions is for "new contracts" which downgrading from Fibre 2 to Fibre 1 would be.