Are Openreach having me on?

Hi,
Bit of a story and hope you guys might be able to validate what im been told regarding sycn speeds

New house, 300m from the Cab, according to BT im 410m from the cab.
Moved in and the line was running at 80/20 worked like this for around 3 months.
I have a new Mk3 filtered socket, no extensions, no phones, and just the router direct in to the master.

ISP is SSE

Over the next 3 months there has been some drops in power due to it been a new estate of 40 houses.

Line speed has been dropping.. Now reached around 57/20. This has been happening as the power has gone on and off to the site.

checking the dslchecker it shows the following:

VDSL Range A (Clean) 80 65 20 20
VDSL Range B (Impacd)73.3 40 20 13.7

This fits nicely with what i saw for the first 3 months.

The IP profile of the line was 79.8
But now is 57.7

Today openreach have been out to look at the line, They are saying it all looks fine. According to their numbers i should be getting 40 - 60. When the line came in at 57 they were happy..

As a test, he walked to the cab, and tested it there. It was leaving the cab at 80/20, and the reduction seem to happen before it reaches me..

After reconnecting my line and walking back to the house it had risen to 60/20.. He could not explain the rise..

He said it could be as more noise has been added to the cable coming to the estate, and more customers coming on stream.

He said the "profile" is set to 80/20 FAST, and should be ok.
As the line has been reset, should I now try avoid any power drops in the supply to the router?
(reason for asking hes left the router plugged in to the wrong socket - Wife wont be happy)

Does all the above sound right?

Should i be happy with 60?

If the router gets powered off due to a power cut (or because you powered it off) you should make sure it remains off for 30 minutes. This is to avoid DLM taking any action, which in your case means slowing your sync speed down.

If you don't do this and DLM slows you down, it takes ages (weeks) for DLM to speed you up again once the line is stable.

Any chance you have access to your modem stats?

I am just wondering if DLM has capped your downstream threshold (looks around 60Mbps based on the IP Profile).

Not likely if the engineer was getting 80/20 at the cab?

Thanks..

I can do that... Just need to try recover my lost speed

so it could be distance + noise?

Every line gets 80/20 at the cab...

Unless on a 55/10, 40/10 or 40/2 product of course.

There is crosstalk, i.e. the signal radiates from the other lines, so if you were the first to order then there was no cross talk which means excellent speeds, as demand increases and more people order the speed can and will drop off, Impossible to predict accurately without masses of information which is not available anyway.

The power cuts may not have helped, especially if the power blipped off/on/off rather than a clean off and clean on some time later. Best bet if you get a power cut is unplug modem, and a similar thing with expensive electronics as when power returns from power cuts it is a time when devices are more likely to die.

If the engineer got a sync of 80 at the cabinet then suggests the DLM systems have not banded your connection.

In reply to a post by MrSaffron:

Unless on a 55/10, 40/10 or 40/2 product of course.

or the port is faulty