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Standard User Toonshorty
(member) Tue 28-Mar-17 23:13:05
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Line speed halved overnight


[link to this post]
 
My parents recently got moved over to a new infill cabinet last year, which improved speeds from 12/1 to a very respectable 76/20. The line has been running at 76/20 for the past few months without any problems whatsoever, but DLM decided to resync the line overnight a week or so ago.

Since the line resynced, the speed has dropped by over half - with the IP profile falling from 75.68 to 38.67, the upload profile remains at 20 - but actual throughput is around 9Mbps.

Putting our number into the DSL checker shows that a clean line should achieve between 74.2 and 55 Mbps, with an impacted line that falls to 62.9 - 38.8. This puts our new speed at or below the quoted impacted low, when previously we were achieving slightly above the clean high speed.

With the drop as severe as it is, would it be possible to get the DLM reset - or will it be a case of waiting for a few months and hoping it decides to up the sync rate in it's own time?

I'd post line stats but unfortunately BT provided us with an ECI modem, so I can't get the stats.
Administrator MrSaffron
(staff) Tue 28-Mar-17 23:21:46
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Re: Line speed halved overnight


[re: Toonshorty] [link to this post]
 
It is possible a mistake has been made and the line capped to a 38/9.5 product at some point

Its one where the ISP needs to get onto Openreach due to the scale of the drop

The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User lee111s
(experienced) Tue 28-Mar-17 23:45:16
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Re: Line speed halved overnight


[re: Toonshorty] [link to this post]
 
Do you have dial tone?

If so can you dial 17070 and run the quiet line test. It should be silent.

If it is, test into the test socket with the router by removing the faceplate from the master socket and retest the speed.


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Standard User PaulKirby
(knowledge is power) Tue 28-Mar-17 23:50:58
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Re: Line speed halved overnight


[re: lee111s] [link to this post]
 
Also if the OP doesn't have a dial tone then one of their wires is broken, that will half the speed.

Paul

BTBroadband - Infinity 4 - 310Mbps (down), 31Mbps (up)
TBB Speedtest
Standard User Zarjaz
(eat-sleep-adslguide) Wed 29-Mar-17 06:59:36
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Re: Line speed halved overnight


[re: MrSaffron] [link to this post]
 
I'd second that Mr.S.

Standard User lee111s
(experienced) Wed 29-Mar-17 07:56:17
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Re: Line speed halved overnight


[re: PaulKirby] [link to this post]
 
Yep, I know, that's why I asked the question wink
Standard User Alnath
(fountain of knowledge) Wed 29-Mar-17 10:17:43
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Re: Line speed halved overnight


[re: PaulKirby] [link to this post]
 
In reply to a post by PaulKirby:
Also if the OP doesn't have a dial tone then one of their wires is broken, that will half the speed.

Paul


That happened to me once, the engineer said vibrations sometimes make one of them come out of the connector in the cabinet, he walked around to it, presumably shoved it back in and bingo everything was fine.
Standard User Zarjaz
(eat-sleep-adslguide) Wed 29-Mar-17 10:37:29
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Re: Line speed halved overnight


[re: Alnath] [link to this post]
 
the engineer said vibrations sometimes make one of them come out of the connector in the cabinet,

Used to be the case with the, now rarer, PC100 terminations.

These days it usually 'Edward Scissorhands" the pushed for time contractor who causes it. frown

Standard User Toonshorty
(member) Wed 29-Mar-17 13:49:46
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Re: Line speed halved overnight


[re: MrSaffron] [link to this post]
 
Uno have got back to me and confirmed that Openreach report the line as running the following profile:

Profile Name 0.128M-80M Downstream, Error Protection Off - 0.128M-20M Upstream, Error Protection Off

Is error protection G.INP? We currently have an ECI modem on a Huawei cab, so if these modems don't support G.INP then maybe it would be worth sourcing an HG612.

Uno are requesting a frames SFI from OR to investigate further.

I'll also someone to test the phone in an a couple of hours.
Standard User fishpan
(learned) Wed 29-Mar-17 15:16:01
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Re: Line speed halved overnight


[re: Toonshorty] [link to this post]
 
"Error protection off" aka "Fastpath" refers to no interleaving on the line whether it is the standard form of interleaving or from G.INP.

If it's G.INP interleaving then it will report "retransmission low/high" in that same section. If its just normal interleaving then it will report "interleaving low/high" etc.

Will definitely be worth looking into a HG612 Version 3B (will have sticker on back saying 3B) if you're sure you on a Huawei cab. Grab firmware B030SP08 from Kitz website and read about unlocking/flashing process. Look to spend around £20-40 for a HG612 modem, not any more.

plusnet Unlimited Fibre Extra 80/20 - sync 72200/19999 around 450m
MyDSLWebStats: fishpan
ISP Hx: Freeserve 48k > Wanadoo 56k > Tiscali 8mbps > TalkTalk 40/10 > Plusnet 80/20 > VM 200/20 > Plusnet 80/20
Standard User Zarjaz
(eat-sleep-adslguide) Wed 29-Mar-17 15:43:29
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Re: Line speed halved overnight


[re: Toonshorty] [link to this post]
 
Uno are requesting a frames SFI from OR to investigate further.

Why ???

Why is requesting a frames SFI visit (the engineer goes to the exchange and tests ADSL sync from CP equipment there) a suitable course of action when you are reporting a problem with your FTTC service ???

Standard User uno
(knowledge is power) Wed 29-Mar-17 15:51:22
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Re: Line speed halved overnight


[re: Zarjaz] [link to this post]
 
In reply to a post by Zarjaz:
Uno are requesting a frames SFI from OR to investigate further.

Why ???


Because this allows us to get Openreach to send an engineer to the cabinet to do the reset without their insistence that we need an appointed visit for an engineer to the property. It does not always work but means that we don't then have play the repeated game of disputing charges when Openreach do resets at the cab citing no fault found in property and charging us for their idiocy.

Largely a closure code/training issue but avoids these incorrect charges but often the need for someone to take a day off when no access to the property is really required.

Matt

uno Communications
t: 0333 773 7700
Official Maidenhead, Milton Keynes & Sheffield Speedtest.net Host
Standard User Zarjaz
(eat-sleep-adslguide) Wed 29-Mar-17 15:56:07
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Re: Line speed halved overnight


[re: uno] [link to this post]
 
...... But they won't be doing the DLM reset you wish for for a frames SFI will they ?

Standard User uno
(knowledge is power) Wed 29-Mar-17 16:00:41
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Re: Line speed halved overnight


[re: Zarjaz] [link to this post]
 
Yes, they do.

This was originally a suggestion from an escalated complaint (about a similarly related DLM fault with three missed appointments due to high work stack with OR) to get around having to appoint a visit. It's surprising how well it works. Not always possible (90% success rate) but does avoid visits when just a reset is required.

Matt

uno Communications
t: 0333 773 7700
Official Maidenhead, Milton Keynes & Sheffield Speedtest.net Host
Standard User Zarjaz
(eat-sleep-adslguide) Wed 29-Mar-17 16:14:00
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Re: Line speed halved overnight


[re: uno] [link to this post]
 
So tell me Matt, what do you put on the task notes ?

Please visit the exchange, test for non existent sync on ADSL equipment, (the 'by the book' requirement of a frames only SFI) oh, and whilst there can you do a DLM reset on a product you've not asked Openreach to test please ?

Get the appointment, get the pair quality test done, have the set up and sync checked in the property, let the punter have a discussion as to what the actual fault is.

Standard User uno
(knowledge is power) Wed 29-Mar-17 16:32:12
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Re: Line speed halved overnight


[re: Zarjaz] [link to this post]
 
If it is solely a reset, that is what is entered.

For the amount of appointments that we used to arrange just for resets, this has shown to be a better option.

OR are happy to accept this request for the type of service they already know is on the line and they do the work that we've asked. If OR had an issue they'd not accept it.

Given that OR suggested we try this based on a complaint about them appointing three visits, which they didn't even turn up for because they didn't have enough resource - we have used it where needs be.

Matt

uno Communications
t: 0333 773 7700
Official Maidenhead, Milton Keynes & Sheffield Speedtest.net Host
Standard User Alnath
(fountain of knowledge) Thu 30-Mar-17 10:51:13
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Re: Line speed halved overnight


[re: Zarjaz] [link to this post]
 
In reply to a post by Zarjaz:
the engineer said vibrations sometimes make one of them come out of the connector in the cabinet,

Used to be the case with the, now rarer, PC100 terminations.

These days it usually 'Edward Scissorhands" the pushed for time contractor who causes it. frown


It is a few years ago when it happened to me.
Standard User Toonshorty
(member) Wed 12-Apr-17 09:50:57
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Re: Line speed halved overnight


[re: Toonshorty] [link to this post]
 
Openreach Engineer came on Monday and tested the line, was able to get 80/20 at the NTE despite the modem only syncing at 40/10. He seemed to think the cable between the master socket and modem may be faulty, although I'm not sure how he came to that conclusion (I wasn't around).

Couple of phone calls later and he had the DLM reset, which allowed the modem to sync at 65/20 again, although that shortly dropped to 55.

The line resynced this morning and has gone back to 40/10 so I'm going to try swapping the modem cable out and source an HG612 from somewhere.
Standard User MHC
(sensei) Wed 12-Apr-17 09:59:13
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Re: Line speed halved overnight


[re: Toonshorty] [link to this post]
 
In reply to a post by Toonshorty:
The line resynced this morning and has gone back to 40/10 so I'm going to try swapping the modem cable out and source an HG612 from somewhere.


That will be a good move - at least you can then see what is happening.


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

M H C


taurus excreta cerebrum vincit
Standard User Toonshorty
(member) Thu 13-Apr-17 22:04:36
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Re: Line speed halved overnight


[re: MHC] [link to this post]
 
So I've sourced an HG612 and replaced the DSL cable, so all the CPE has been replaced. Below are the stats I've pulled off it. The attenuation seems high as the line was previously able to get 74Mbps without much of an issue, and we're probably only around 400m from the cabinet (I don't believe the line takes any funny routes).

xdslcmd info --stats
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 0
Last initialization procedure status: 0
Max: Upstream rate = 22115 Kbps, Downstream rate = 56812 Kbps
Bearer: 0, Upstream rate = 9999 Kbps, Downstream rate = 39999 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): 13.9 16.1
Attn(dB): 16.3 0.0
Pwr(dBm): 12.7 6.9
VDSL2 framing
Bearer 0
MSGc: -6 58
B: 166 236
M: 1 1
T: 0 23
R: 10 16
S: 0.1327 0.7543
L: 10668 2694
D: 16 1
I: 177 127
N: 177 254
Q: 16 0
V: 5 0
RxQueue: 24 0
TxQueue: 8 0
G.INP Framing: 18 0
G.INP lookback: 8 0
RRC bits: 0 24
Bearer 1
MSGc: 90 -6
B: 0 0
M: 2 0
T: 2 0
R: 16 0
S: 10.6667 0.0000
L: 24 0
D: 1 0
I: 32 0
N: 32 0
Q: 0 0
V: 0 0
RxQueue: 0 0
TxQueue: 0 0
G.INP Framing: 0 0
G.INP lookback: 0 0
RRC bits: 0 0
Counters
Bearer 0
OHF: 0 54089
OHFErr: 0 0
RS: 14048592 2487425
RSCorr: 0 0
RSUnCorr: 0 0
Bearer 1
OHF: 29198 0
OHFErr: 0 0
RS: 174817 0
RSCorr: 0 0
RSUnCorr: 0 0

Retransmit Counters
rtx_tx: 663 0
rtx_c: 0 0
rtx_uc: 0 0

G.INP Counters
LEFTRS: 0 0
minEFTR: 39993 0
errFreeBits: 286066 0

Bearer 0
HEC: 0 0
OCD: 0 0
LCD: 0 0
Total Cells: 36035307 0
Data Cells: 1361675 0
Drop Cells: 0
Bit Errors: 0 0

Bearer 1
HEC: 0 0
OCD: 0 0
LCD: 0 0
Total Cells: 0 0
Data Cells: 0 0
Drop Cells: 0
Bit Errors: 0 0

ES: 0 0
SES: 0 0
UAS: 28 28
AS: 470

Bearer 0
INP: 48.00 0.00
INPRein: 0.00 0.00
delay: 0 0
PER: 0.00 8.70
OR: 0.01 58.79
AgR: 40104.49 10057.90

Bearer 1
INP: 2.50 0.00
INPRein: 2.50 0.00
delay: 0 0
PER: 16.06 0.01
OR: 47.81 0.01
AgR: 47.81 0.01

Bitswap: 239/239 0/0

Total time = 8 min 18 sec
FEC: 0 0
CRC: 0 0
ES: 0 0
SES: 0 0
UAS: 28 28
LOS: 0 0
LOF: 0 0
LOM: 0 0
Latest 15 minutes time = 8 min 18 sec
FEC: 0 0
CRC: 0 0
ES: 0 0
SES: 0 0
UAS: 28 28
LOS: 0 0
LOF: 0 0
LOM: 0 0
Previous 15 minutes time = 0 sec
FEC: 0 0
CRC: 0 0
ES: 0 0
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
Latest 1 day time = 8 min 18 sec
FEC: 0 0
CRC: 0 0
ES: 0 0
SES: 0 0
UAS: 28 28
LOS: 0 0
LOF: 0 0
LOM: 0 0
Previous 1 day time = 0 sec
FEC: 0 0
CRC: 0 0
ES: 0 0
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
Since Link time = 7 min 49 sec
FEC: 0 0
CRC: 0 0
ES: 0 0
SES: 0 0
UAS: 0 0
LOS: 0 0
LOF: 0 0
LOM: 0 0
#
Standard User Banger
(eat-sleep-adslguide) Thu 13-Apr-17 22:19:12
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Re: Line speed halved overnight


[re: Toonshorty] [link to this post]
 
That looks like 40/10 to me something is amiss.

Tim
www.uno.net.uk & freenetname
Asus DSL-N55U and TP-Link WD9970 on 80 Meg LLU Fibre
http://www.thinkbroadband.com/speedtest/results.html...
Standard User j0hn83
(member) Thu 13-Apr-17 22:32:36
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Re: Line speed halved overnight


[re: Toonshorty] [link to this post]
 
Speak to the ISP, you've been dropped to 40/10 by the looks of this sync figures. I doubt that's DLM banding with both down/up being banded at exactly the 40/10 package limits.
Administrator MrSaffron
(staff) Thu 13-Apr-17 22:43:46
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Re: Line speed halved overnight


[re: Banger] [link to this post]
 
+1 to the 40/10 downgrade

The author of the above post is a thinkbroadband staff member. It may not constitute an official statement on behalf of thinkbroadband.
Standard User Toonshorty
(member) Thu 13-Apr-17 22:45:52
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Re: Line speed halved overnight


[re: j0hn83] [link to this post]
 
In reply to a post by j0hn83:
Speak to the ISP, you've been dropped to 40/10 by the looks of this sync figures. I doubt that's DLM banding with both down/up being banded at exactly the 40/10 package limits.


My ISP had confirmed with Openreach that the line is set to an 80/20 profile the last time it derated.

When the SFI engineer came round in the week he did say that the line seemed to be reverting to 40/10 despite being set to 80/20 and that he really wasn't sure why, he'd never seen anything like it.

DLM reset did fix it for about 12 hours before it went back to 40/10 again.

Sounds like we need another engineer back out.

Edited by Toonshorty (Thu 13-Apr-17 22:46:30)

Standard User MHC
(sensei) Fri 14-Apr-17 00:37:36
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Re: Line speed halved overnight


[re: Toonshorty] [link to this post]
 
Apart from the 40/10 banding or down grade.

With a 16.3 dB attenuation you should be looking at a Max Attainable figure of mid to hi 70's. and maybe even just into te 80s. My line is around 16dB and am currently sync'd at 79.7 so anywhere from say 72 to 82 would be reasonable but at 56.8 something must be pulling it down and the only possibility is noise.


Get MyDSLStats running and make them data available online - others can then view the graphs and comment

.


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

M H C


taurus excreta cerebrum vincit
Standard User lee111s
(fountain of knowledge) Fri 14-Apr-17 00:49:38
Print Post

Re: Line speed halved overnight


[re: Toonshorty] [link to this post]
 
Could be a faulty port. Have you had a lift and shift?
Standard User Zarjaz
(eat-sleep-adslguide) Fri 14-Apr-17 08:57:25
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Re: Line speed halved overnight


[re: lee111s] [link to this post]
 
Agreed, or that rarest of faults, a rectified split pair (VERY unlikely)

Standard User Toonshorty
(member) Fri 14-Apr-17 11:50:21
Print Post

Re: Line speed halved overnight


[re: MHC] [link to this post]
 
In reply to a post by MHC:
Apart from the 40/10 banding or down grade.

With a 16.3 dB attenuation you should be looking at a Max Attainable figure of mid to hi 70's. and maybe even just into te 80s. My line is around 16dB and am currently sync'd at 79.7 so anywhere from say 72 to 82 would be reasonable but at 56.8 something must be pulling it down and the only possibility is noise.


Get MyDSLStats running and make them data available online - others can then view the graphs and comment

.


I've got my brother to setup MyDSLStats, I've no idea how to get a sharing URL for MyDSLStats but his username is Hanayou.
Standard User MHC
(sensei) Fri 14-Apr-17 12:14:21
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Re: Line speed halved overnight


[re: Toonshorty] [link to this post]
 
Have had a quick glance ...

Have a look at your Bits per tone graph and tell me if you think there is a problem?

Then look at SNR/tone and Down3 is showing 16dB or so at tone 28 dropping to zero at 2950 ... I would expect something nearer 25 dB dropping to around 5 to 20 at tone 4000

Hlog - atten per tone looks fine and almost mimics mine.


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

M H C


taurus excreta cerebrum vincit
Standard User WWWombat
(knowledge is power) Sat 15-Apr-17 12:29:52
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Re: Line speed halved overnight


[re: MHC] [link to this post]
 
I'm away, so can't look properly, but the key here looks to be in the Quiet Line (QLN) graph.

That shows a lot of noise being picked up in D3 - more than other parts of the spectrum. Normally, D3 is about as noisy as D2 or less, not more.

That explains why SNR per tone is lower in D3 than normal, and therefore why bits per tone is lower there.

Could that mean Zarjaz is right on the split pair? Would that fail to reject noise in D3 more than lower frequencies?
Standard User MHC
(sensei) Sat 15-Apr-17 18:33:34
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Re: Line speed halved overnight


[re: WWWombat] [link to this post]
 
That is horrific ...


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

M H C


taurus excreta cerebrum vincit
Standard User Toonshorty
(member) Mon 17-Apr-17 17:47:42
Print Post

Re: Line speed halved overnight


[re: WWWombat] [link to this post]
 
In reply to a post by WWWombat:
I'm away, so can't look properly, but the key here looks to be in the Quiet Line (QLN) graph.

That shows a lot of noise being picked up in D3 - more than other parts of the spectrum. Normally, D3 is about as noisy as D2 or less, not more.

That explains why SNR per tone is lower in D3 than normal, and therefore why bits per tone is lower there.

Could that mean Zarjaz is right on the split pair? Would that fail to reject noise in D3 more than lower frequencies?


In case MyDSLWebStats doesn't show the username for whatever reason, this is the QLN graph for anyone interested: https://i.imgur.com/jQZTCOF.png

There definitely seems to be a problem with noise in D3, although I've no idea what would cause that.

I dialled 17070 and did a quiet line test while I was there the other day and noticed a very faint hissing - that may just be coincidence but would that be an indicator of noise at the higher tones?

Could it be caused by internal noise or is it likely to be a problem with the line itself? When the engineer came round, he indicated that the issue was caused by my DSL cable between the NTE and the modem. I've since replaced the NTE and the modem, but it appears that isn't the problem.
Standard User RobertoS
(elder) Mon 17-Apr-17 18:13:09
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Re: Line speed halved overnight


[re: Toonshorty] [link to this post]
 
In reply to a post by Toonshorty:
When the engineer came round, he indicated that the issue was caused by my DSL cable between the NTE and the modem. I've since replaced the NTE and the modem, but it appears that isn't the problem.
What about the cable between them?

It sounds like a load of bull from the engineer anyway, but if it is the cable between A and B, replacing A and B won't fix it.

Kindness isn't going to cure the world of all its awfulness but it's a good place to begin. Daisy Ridley.
My broadband basic info/help site - www.robertos.me.uk. Domains, site and mail hosting - Tsohost.
Connection - AAISP Home::1 80/20. Sync 65273/13554Kbps @ 600m. BQMs - IPv4 & IPv6
Standard User Toonshorty
(member) Mon 17-Apr-17 18:39:37
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Re: Line speed halved overnight


[re: RobertoS] [link to this post]
 
In reply to a post by RobertoS:
In reply to a post by Toonshorty:
When the engineer came round, he indicated that the issue was caused by my DSL cable between the NTE and the modem. I've since replaced the NTE and the modem, but it appears that isn't the problem.
What about the cable between them?

It sounds like a load of bull from the engineer anyway, but if it is the cable between A and B, replacing A and B won't fix it.


Sorry, that was me being an idiot. I haven't replaced the NTE - I replaced the DSL cable between the NTE and the modem with some CAT5e.
Standard User Toonshorty
(member) Tue 18-Apr-17 15:04:43
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Re: Line speed halved overnight


[re: Toonshorty] [link to this post]
 
I've got another engineer booked in for Friday and Uno have asked Openreach for a full reason as to why the line is reverting to 40/10 and not for them just to perform another DLM reset and have it return to 40/10 overnight.

I'll show the engineer the QLN and tone graphs, although they may ask me to report that as a separate issue, depends on the engineer I guess. The two may be related, but I'm not sure.

Edited by Toonshorty (Tue 18-Apr-17 15:05:00)

Standard User j0hn83
(member) Tue 18-Apr-17 16:11:43
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Re: Line speed halved overnight


[re: Toonshorty] [link to this post]
 
I'd be surprised if the average engineer knew what a QLN plot was, or anything related to bits per tone.
Standard User Zarjaz
(eat-sleep-adslguide) Tue 18-Apr-17 19:04:49
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Re: Line speed halved overnight


[re: j0hn83] [link to this post]
 
or anything related to bits per tone.

Despite there being a bits per tone graph shown on every single manual test carried out on their JDSU/Exfo ?

Whether they bother to look at said graph, that's a different matter.

Standard User Toonshorty
(member) Fri 21-Apr-17 15:33:39
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Re: Line speed halved overnight


[re: Toonshorty] [link to this post]
 
So the engineers turned up today and did some more investigation, they claimed our line build (whatever that is) was set to 40/10 and that they will have a new build that fixes it at 80/20 before the line resets to 40/10 again.

I've not heard of line builds before, but what I can see is that the HG612 is now showing the following stats:

xdslcmd info --stats
xdslcmd: ADSL driver and PHY status
Status: Showtime
Retrain Reason: 1
Last initialization procedure status: 0
Max: Upstream rate = 21421 Kbps, Downstream rate = 73608 Kbps
Bearer: 0, Upstream rate = 19999 Kbps, Downstream rate = 73839 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): 6.1 7.4
Attn(dB): 16.4 0.0
Pwr(dBm): 13.6 7.0


Strangely our sync rate is actually marginally higher than the attainable which is odd, but G.INP isn't currently active so I suspect that will come into play soon.

I wasn't around but my brother did mention the noise issue to them, they tested for radio noise and apparently the Sonos bridge was causing tons of noise - so looks like I'll be moving that away from the modem. That may have been the cause of the QLN bump in D3 but we'll see.
Standard User Toonshorty
(member) Sun 23-Apr-17 22:00:12
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Re: Line speed halved overnight


[re: Toonshorty] [link to this post]
 
So the line resynced this morning which has been a bit of a mixed bag.

The good news is that G.INP was activated and the attainable rates are now 77068/19718.

The bad news is that the actual sync rate is 40000/9999. Interestingly the downstream sync is 40000 rather than the usual 39999 it would get stuck at - not sure if that means anything.

Whatever the engineers did obviously didn't work.
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