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Standard User darrellr
(member) Sun 25-Dec-16 09:38:50
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Recovery profile


[link to this post]
 
I have had my house re-built from the ground up over the last 5 months and due to the builders desire for broadband to get a (wifi) phoe signal the router was on most of the time. Obviously during the first/second fix period there was a lot of on/off events and my rate dropped from 74 mbps to 20!

After 5 days of no events it recovered to 22400 and then the next day (yesterday) to 25000. This morning there was another forced change but no rate change (I suspect INP improved).

Is there a set recovery process? I'm assuming it will recover daily from now on.

TalkTalk Business Fibre Broadband
(74 mbps, 9db attenuation, 7.4db SNR, 300 metres from cab)
Standard User MHC
(sensei) Sun 25-Dec-16 10:19:45
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Re: Recovery profile


[re: darrellr] [link to this post]
 
In reply to a post by darrellr:
Is there a set recovery process? I'm assuming it will recover daily from now on.


WAIT and TIME


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

M H C


taurus excreta cerebrum vincit
Standard User ukhardy07
(knowledge is power) Sun 25-Dec-16 10:27:50
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Re: Recovery profile


[re: darrellr] [link to this post]
 
That speed change seems drastic and outside DLMs usual...

Do you have line stats?


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Standard User MHC
(sensei) Sun 25-Dec-16 10:57:44
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Re: Recovery profile


[re: ukhardy07] [link to this post]
 
May sound drastic but with builders there the disconnects, as suggested, may have been frequent however what is more likely is that the RFI/EMI from the tools will have driven a lot of disconnects and a very high noise floor at times.


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

M H C


taurus excreta cerebrum vincit
Standard User darrellr
(member) Sun 25-Dec-16 11:43:01
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Re: Recovery profile


[re: MHC] [link to this post]
 
smile

I know it will take time and I'm chilled about it. I assume the algorithm in the DSLAM will be fixed and it will follow a pattern to return my line to full speed.

If it isn't known I'll update this post with my experience as it recovers

Line stats:

DSL synchronization status: Up
Connection status: Showtime
Upstream line rate (kbit/s): 7200
Downstream line rate (kbit/s): 25000
Maximum upstream rate (kbit/s): 32027
Maximum downstream rate (kbit/s): 83480
Upstream noise safety coefficient (dB): 25.8
Downstream noise safety coefficient (dB): 22.8
Upstream interleave depth: 0
Downstream interleave depth: 0
Line standard: VDSL
Upstream line attenuation (dB): 17.6
Downstream line attenuation (dB): 8.9
Upstream output power (dBm): 4.6
Downstream output power (dBm): 12.6
Channel type: None
DSL up-time: 0 days 3 hours 59 minutes 59 seconds

TalkTalk Business Fibre Broadband
(74 mbps, 9db attenuation, 7.4db SNR, 300 metres from cab)
Standard User ukhardy07
(knowledge is power) Sun 25-Dec-16 14:01:58
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Re: Recovery profile


[re: darrellr] [link to this post]
 
Yeah it'll return to normal soon enough... The crazy thing is most homeowners do not even notice when their connection drops like this, if they are online and can get on instagram and stream netflix they are smiling along.
Standard User WWWombat
(knowledge is power) Sun 25-Dec-16 21:23:07
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Re: Recovery profile


[re: darrellr] [link to this post]
 
6 months ago, DLM was being *terrible*: it banded things too easily, and was really bad at recovering from banding. It would stick and stall at artificially low speeds, and never recover properly.

I've not seen many signs recently to suggest that this has either worsened or improved.
Standard User RobertoS
(elder) Mon 26-Dec-16 00:32:53
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Re: Recovery profile


[re: WWWombat] [link to this post]
 
Long story on banding changes.

A few months ago I found I was apparently banded at 60,000Kbps, a speed that strangely I had never reached until that happened. I have two HG612s. The one in use at the time was the one that hit the 60,000 through several re-sync's over the weeks. The Max attainable always a few hundred Kbps below that.

In late October or early in November I put the other one on just to test it and my spare 582n router still worked, so I could lend them to someone. This sync'ed in the mid 5700s with Max attainable a bit higher.

I decided to experiment with the ZyXel modem router from AA, which they had configured in router mode to be fed by the HG 612, to get the IPv6 working. It hadn't done from Day 1 as far as I know.

Over the next two or three weeks I tried that in modem router mode, giving 59999Kbps sync and Max attainable around the very high 69,000+Kbps. The IPv6 was unstable so I then substituted an HG612 feeding my ASUS RT-N66U which I knew handled IPv6 from my time with Plusnet.

Over this period my banding dropped to 55,000Kbps frown.

I then replaced the HG612 with a Draytek Vigor 130 modem hoping to help remove the banding. Feeding the ZyXel back in its original configuration. It provided IPv6 for a few hours then fell back to IPv4. Banding fell to 49,000Kbps.

I then obtained a Billion 8800NL R2 and installed it in modem router mode on Wednesday 17 Dec evening after four days of the Draytek. It sync'ed at the 48,999Kbps expected, with attainable at 67,000+Kbps. However I had to reboot it two or three times that evening to get IPv6 working properly.

10am Thursday 18 Dec DLM dropped the banding to 44,000Kbps frown. I hoped that was because of my continued messing around, and resigned myself to several weeks at that speed.

4:42am on Saturday 17 Dec it jumped back up to 55,000Kbps! Been there ever since. I now have to wait and see if and when it puts it back up to 60,000Kbps or even removes it altogether. Max attainable in the 67,000s.

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 54999/16208Kbps @ 600m. BQMs - IPv4 & IPv6
Standard User darrellr
(member) Mon 26-Dec-16 09:45:27
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Re: Recovery profile


[re: darrellr] [link to this post]
 
end of disruption 17th December 20,000/4999

23rd December 09:00 resync to 22400/5999
24th December 08:40 resync to 25000/7240
25th December 07:45 resync (G.INP reduction?)
26th December 09:12 resync to 27400/8496

TalkTalk Business Fibre Broadband
(74 mbps, 9db attenuation, 7.4db SNR, 300 metres from cab)

Edited by darrellr (Mon 26-Dec-16 09:58:13)

Standard User 69bertie
(member) Mon 26-Dec-16 10:31:20
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Re: Recovery profile


[re: ukhardy07] [link to this post]
 
I would run the BT speed test It will tell you if you are outside your normal expected range. If it does, I would also contact your ISP and register a fault with them.

Certainly, despite what others have said (who I have much respect for) do not expect DLM to reset the line any day soon. The time it reset my line lower (June/July), it took getting on to 3 months to bring my line back up to what it is capable of. I then had another local power failure about a month ago. I'm back down to 64Mb, down from 76Mb. People say a single power loss of the modem will not get the attention of DLM. My experience says otherwise (or maybe we have an over active DLM around here). Personally, I wish they would turn the darn thing off.

Reporting a fault, at the very least, gets the attention of your ISP. If it is way outside the expected range, they will do the biz. Just don't stand back and expect things to improve. You'll be paying good money for a poor service for a long time.

Standard User ukhardy07
(knowledge is power) Mon 26-Dec-16 11:26:13
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Re: Recovery profile


[re: darrellr] [link to this post]
 
Yeah good point raised by most here...

When I said soon enough my experience is it took 2 months for DLM to release my line so do not expect it to happen overnight, but in time my line got better.
Standard User WWWombat
(knowledge is power) Mon 26-Dec-16 17:26:27
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Re: Recovery profile


[re: RobertoS] [link to this post]
 
Can you confirm the dates in the last few paragraphs? They don't make sense (eg 17th Dec was not a Wednesday).
Standard User RobertoS
(elder) Mon 26-Dec-16 17:51:21
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Re: Recovery profile


[re: WWWombat] [link to this post]
 
OOps blush!!

Too late to edit unfortunately.

Billion installed Wed 14 evening.
Final lowering of IP Banding 10am Thursday 15 December.
Jump to 55,000 banding correctly stated as 04:42 Saturday 17 Dec.

How I messed that up so badly I have no idea frown. Completely alcohol-free bar a small glass of fizz at lunchtime (because I was driving).

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 54999/16208Kbps @ 600m. BQMs - IPv4 & IPv6
Standard User WWWombat
(knowledge is power) Wed 28-Dec-16 02:34:28
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Re: Recovery profile


[re: RobertoS] [link to this post]
 
Yeah - quite typical symptoms. Over-zealous engagement of banding in the first place. Then a partial reduction in banding initially ... but one that never quite manages to complete.

This new behaviour seemed to coincide with the 2nd disastrous deployment of G.INP for ECI, but could have been a result of rework caused by the Assia patent agreement.

It seems strange that, just when they've deployed a decent workable item in the DLM toolkit (with G.INP, on Huawei at least), they set things back hugely with the banding behaviour.
Standard User darrellr
(member) Wed 28-Dec-16 08:21:50
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Re: Recovery profile


[re: darrellr] [link to this post]
 
23rd December 09:00 resync to 22400/5999
24th December 08:40 resync to 25000/7240
25th December 07:45 resync (G.INP reduction?)
26th December 09:12 resync to 27400/8496


28th December 07:29 resync to 29999/9999

At this rate (10 mbps pre week) I t will take me over a month to recover!!

TalkTalk Business Fibre Broadband
(74 mbps, 9db attenuation, 7.4db SNR, 300 metres from cab)

Edited by darrellr (Wed 28-Dec-16 09:49:15)

Standard User darrellr
(member) Fri 30-Dec-16 08:29:53
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Re: Recovery profile


[re: darrellr] [link to this post]
 
In reply to a post by darrellr:
23rd December 09:00 resync to 22400/5999
24th December 08:40 resync to 25000/7240
25th December 07:45 resync (G.INP reduction?)
26th December 09:12 resync to 27400/8496
27th December No resync
28th December 07:29 resync to 29999/9999
29th December No resync


30th December 06:58 resync to 32400/11999

TalkTalk Business Fibre Broadband
(74 mbps, 9db attenuation, 7.4db SNR, 300 metres from cab)

Edited by darrellr (Fri 30-Dec-16 08:52:04)

Standard User darrellr
(member) Wed 11-Jan-17 07:32:34
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Re: Recovery profile


[re: darrellr] [link to this post]
 
the recovery profile seems obvious from the stats so far. Within a week I should be back at 74-80 down/20 up.

23rd December 09:00 resync to 22400/5999
24th December 08:40 resync to 25000/7240
25th December 07:45 resync (G.INP reduction?)
26th December 09:12 resync to 27400/8496
27th December No resync
28th December 07:29 resync to 29999/9999
29th December No resync
30th December 06:58 resync to 32400/11999
31st December No resync
1st January 08:00 resync to 34999/14999
2nd January No resync
3rd January 06:46 resync to 40000/16999
4th January No resync
5th January 12:30 manual reboot - resync to 44000/19000
6th January No resync
7th January 04:56 resync to 49000/19999
8th January No resync
9th January 06:48 resync to 55000/19999
10th January No resync
11th January 06:54 resync to 60000/19999

TalkTalk Business Fibre Broadband
(74 mbps, 9db attenuation, 7.4db SNR, 300 metres from cab)
Standard User WWWombat
(knowledge is power) Wed 11-Jan-17 17:16:23
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Re: Recovery profile


[re: darrellr] [link to this post]
 
Good to see things happening so far. Fingers' crossed for the remainder.

What are your current line stats?
Standard User MHC
(sensei) Wed 11-Jan-17 17:39:39
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Re: Recovery profile


[re: darrellr] [link to this post]
 
It seems to be following the process I suggested in my earlier post: http://forums.thinkbroadband.com/fibre/t/4522571-re-...

You may see a couple more 5Mbps increments and then possibly a few smaller ones as you get close to the max achievable figure - it will be interesting to see what actually happens.

What is your modem saying for SNR and Max Achievable?


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

M H C


taurus excreta cerebrum vincit
Standard User darrellr
(member) Wed 11-Jan-17 22:44:15
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Re: Recovery profile


[re: MHC] [link to this post]
 
Maximum upstream rate (kbit/s): 31613
Maximum downstream rate (kbit/s) 80268
Upstream noise safety coefficient (dB): 15.6
Downstream noise safety coefficient (dB): 11.4

NB. Max achievable dropped from 83,400 to 80,300 around new years day. I assume that means crosstalk

TalkTalk Business Fibre Broadband
(74 mbps, 9db attenuation, 7.4db SNR, 300 metres from cab)

Edited by darrellr (Wed 11-Jan-17 22:48:51)

Standard User WWWombat
(knowledge is power) Thu 12-Jan-17 19:24:04
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Re: Recovery profile


[re: darrellr] [link to this post]
 
The max achievable is a theoretical value, extrapolated by the modem from current conditions.

It could be that another subscriber activated, added crosstalk, and you saw the effect.

It is also possible that, as the banding has reduced, the extrapolation process comes up with a different answer.
Standard User MHC
(sensei) Fri 13-Jan-17 08:45:04
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Re: Recovery profile


[re: darrellr] [link to this post]
 
Along with WWW's comment, there could be some additional external noise from a device in your house or that of a neighbour.


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

M H C


taurus excreta cerebrum vincit
Standard User WWWombat
(knowledge is power) Mon 23-Jan-17 14:26:55
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Re: Recovery profile


[re: darrellr] [link to this post]
 
In reply to a post by darrellr:
Within a week I should be back at 74-80 down/20 up.

23rd December 09:00 resync to 22400/5999
...
9th January 06:48 resync to 55000/19999
10th January No resync
11th January 06:54 resync to 60000/19999


Has there been any progress in the last couple of weeks?
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