on 17-12-2021 09:40 AM
My Fibre 65 connection went live on 06 December after being transferred from PlusNet, and ever since then DLM has not kicked in to drop my downstream SnR margin from 18dB to 3dB like it has been for over 5 years. This means that I've lost ~5mbit of my downstream speed.
I am using the same cables and microfilter as I was using with PlusNet, but I am now using TalkTalk's Huawei DG8041W router.
Is there a way to get DLM to kick in? I restarted the router yesterday after 7 days of uptime
and it made no difference.
on 23-12-2021 09:11 AM
Sorry to hear that there was no improvement with the Sagemcom. Yes could you return one of the routers please, you can decide which one you would like to keep
on 22-12-2021 05:44 PM
I received the Sagemcom router a few hours ago and just plugged it in. Looks like the connection speed is the same as the Huawei so neither of the TalkTalk routers are as fast as my old TP-Link W9970.
I assume that I have to return one of the TalkTalk routers. Do I get to choose which one to keep?
20-12-2021 07:39 PM - edited 20-12-2021 07:40 PM
Seems like the modem in TalkTalk's Huawei router isn't as good
I'm not sure if the correct way of expressing it. Rather than some modems being "better" or "worse", I think it's more like different modems will perform slightly differently depending on various factors such as the line length and quality, the equipment in the fibre cabinet etc. The "best" preforming one for your circumstances might not be the best for someone else.
I'm guessing that as your downstream SNR target appears to be 3dB that you are connected to a Huawei cabinet, as I believe all the ECI ones are 6dB, so perhaps slightly ironic that the Huawei modem/router doesn't perform as well.
on 20-12-2021 01:35 PM
on 20-12-2021 01:23 PM
on 20-12-2021 01:16 PM
Switching back to the TP-Link W9970 solved the problem. Seems like the modem in TalkTalk's Huawei router isn't as good, although the W9970 is pretty rubbish as a router since the CPU is so slow. Fortunately it supports bridge mode.
Thanks for your assistance!
on 20-12-2021 12:19 PM
on 20-12-2021 09:44 AM
on 20-12-2021 09:08 AM
Thanks for following up so early. Like you said, moving the phoneline to test socket has had a very minimal impact. I don't think DLM has done anything since the connection has an uptime of almost 50 hours. I had a look through the emails I received when I signed up for Fibre 65 and I can't see any mention of predicted speeds.
I was with TalkTalk about 2 years ago at the same address and I definitely got a better downstream line rate. Seems like something has changed since then.
on 20-12-2021 06:51 AM
I've re-checked the connection stats now and the sync speed has only increased ever so slightly. Can I just confirm, were you provided with a predicted speed range for the line?
on 17-12-2021 07:42 PM
That is indeed a "d'oh!" moment! However, it doesn't really change the fact that my line is 4-5mbit slower than it was with Plusnet 11 days ago and nothing has changed apart from transferring the service to TalkTalk and switching to their supplied Huawei router.
As I understand it, there are 3 "stability" profiles which ISPs can specify the Openreach DLM uses to manage the line:
I believe that almost all ISPs use one of the first two options, but they don't seem keen to publish that information.
I believe TalkTalk use the slower "standard" profile. I would guess that Plusnet use the fastest "speed" profile (as their parent company BT do) which would account for the difference in speed on your line.
on 17-12-2021 10:13 AM
on 17-12-2021 09:57 AM