on 06-04-2021 12:22 PM
The downstream VDSL sync speed dropped to 41Mbit/s a couple of weeks ago & hasnt changed despite switching router off for 30mins etc to try to get DLM to activate.
The router info:-
Upstream line rate 20Mbit/s
Downstream line rate 35Mbit/s
Max upstream line rate 21Mbit/s
Max downstream line rate 88Mbit/s
Upstream noise margin 6.1db
Downstream noise margin 13.2db
Upstream interleave depth 1
Downstream interleave depth 2977
So I still have a very underperforming fibre broadband with speedboost.
The speedboost has worked for periods but seems very unreliable.
This has been ongoing problem, sometimes for a week the downstream sync speed will be 61 Mbit/s then the internet light turns red & I loose all connection until I reboot the HG633 router which restores connection at a much lower sync speed.
I am desperate for fttp to stop all this nonsense with hybrid fibre/copper.
on 28-04-2021 02:51 PM
on 28-04-2021 02:24 PM
Openreach engineer has called & done some testing. I dont think he found any fault but looks like DLM has been reset because downstream now 65Mbp/s. Lets hope it stays stable etc.
Many thanks for your help.
on 27-04-2021 08:24 AM
on 26-04-2021 01:05 PM
on 26-04-2021 06:48 AM
I've checked the connection stats again and DLM has not made any further changes.
I'm just sending you a Private Message to confirm some details so I can arrange an engineer visit.
on 23-04-2021 12:59 PM
on 23-04-2021 11:33 AM
I've checked the connection stats and your line is in sync at 35.5mb. DLM has not made any changes to the line profile yet.
I will check the connection stats again on Monday.
on 21-04-2021 11:25 AM
on 21-04-2021 06:23 AM
on 20-04-2021 12:50 PM
on 20-04-2021 12:15 PM
I have re-booted the router this morning as I was having difficulty with my music streamer which is connected with ethernet cable.
Turns out one of the ethernet ports on the new router is faulty, I swopped cables at the router end & the fault stayed with port 3.
Not a very good replacement for the HG633 that had all 4 ethernet ports working fine.
I will leave the new one connected for now as I can manage with 3 working ports for a while, but obviously I would like another replacement asap.
As far as the underperforming broadband downstream speed goes it looks increasingly like Openreach DLM is using a banded profile which has a 13db noise margin when its supposed to be approx 6db,
Upstream is spot on max & 6+db.
I would like to get this fixed please.
on 20-04-2021 09:00 AM
on 19-04-2021 07:15 PM
New router received & connected. Allowed 40mins between switching off old router & switching on new one, now monitoring speeds for a few days hoping to see downstream speeds back to 60ish Mbp/s as they were a few months ago.