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Standard User AndyPandy
(fountain of knowledge) Tue 02-Aug-16 15:26:34
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DLM not resetting in FTTC


[link to this post]
 
Hi All,

I had a line problem a few months ago (literally). After months of intermittent HR issues, the line completely failed. An OR engineer was dispatched and it was fixed, however since then my line is stuck at 67/19, when the attainable is ~74/20.

I know that DLM takes time to reset, but months having passed, I think something's wrong. The router is up and stable along with the line.

I asked my ISP (Zen), and they were unusually unhelpful.

Anything I can try?

Cheers,
AP


ZeN Unlimited Fibre 2
Fritz!Box 3390
Standard User lee111s
(experienced) Tue 02-Aug-16 15:28:50
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Re: DLM not resetting in FTTC


[re: AndyPandy] [link to this post]
 
It's very rare that you will get the attainable rate.

What is your noise margin?
Standard User AndyPandy
(fountain of knowledge) Tue 02-Aug-16 16:31:17
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Re: DLM not resetting in FTTC


[re: lee111s] [link to this post]
 
It's 8db on the downstream. I used to get the max attainable until all this happened.


ZeN Unlimited Fibre 2
Fritz!Box 3390


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Standard User lee111s
(experienced) Tue 02-Aug-16 16:38:06
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Re: DLM not resetting in FTTC


[re: AndyPandy] [link to this post]
 
You'll be within the estimated range for your line so I doubt they'll be willing to do anything.
Standard User RobertoS
(elder) Tue 02-Aug-16 16:41:36
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Re: DLM not resetting in FTTC


[re: AndyPandy] [link to this post]
 
Could we have the full stats please?

How long since you rebooted the modem or router?

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 57791/14021kbps @ 600m. - BQM
Standard User AndyPandy
(fountain of knowledge) Tue 02-Aug-16 16:43:02
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Re: DLM not resetting in FTTC


[re: RobertoS] [link to this post]
 
Current uptime is 21 days. I hope this doesn't format horribly:

Max. DSLAM throughput kbit/s 67000 19000
Min. DSLAM throughput kbit/s 128 128
Attainable throughput kbit/s 74701 20229
Current throughput kbit/s 66997 19000
Seamless rate adaptation off off

Latency fast fast
Impulse Noise Protection (INP) 43 0
G.INP on off

Signal-to-noise ratio dB 8 6
Bitswap on on
Line attenuation dB 16 23

Profile 17a
G.Vector off off

Carrier record A43 A43


ZeN Unlimited Fibre 2
Fritz!Box 3390
Standard User AndyPandy
(fountain of knowledge) Tue 02-Aug-16 16:43:53
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Re: DLM not resetting in FTTC


[re: lee111s] [link to this post]
 
That's the problem. I suppose I should have gone down the broadband fault route, rather than the voice fault route when reporting the line down.... :/


ZeN Unlimited Fibre 2
Fritz!Box 3390
Standard User RobertoS
(elder) Tue 02-Aug-16 16:53:09
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Re: DLM not resetting in FTTC


[re: AndyPandy] [link to this post]
 
That looks suspiciously like banding was applied and not removed by the engineer requesting it. But so far as I know 67,000 is not top of a band.

Edit - I see you had a phone engineer, not a broadband one. Nothing would have been done about the DLM then.

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 57791/14021kbps @ 600m. - BQM

Edited by RobertoS (Tue 02-Aug-16 16:54:29)

Standard User bet_here
(member) Tue 02-Aug-16 16:54:31
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Re: DLM not resetting in FTTC


[re: AndyPandy] [link to this post]
 
Reboot the modem!
Standard User AndyPandy
(fountain of knowledge) Tue 02-Aug-16 16:59:39
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Re: DLM not resetting in FTTC


[re: bet_here] [link to this post]
 
I've tried that a few times, hence why the uptime is only 21 days, and not months.

I read that DLM should reset early in the morning, causing a resynch, but it's not happened for me.


ZeN Unlimited Fibre 2
Fritz!Box 3390
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