Luckily had a mini breakthrough with the Post Office who are sending a guy out Tuesday coming to take a look at everything. Hopefully he will try a few things then come and see it hasn't made any difference and perhaps suggest it's the fail router?

That would be an Openreach engineer on an LLU SFI visit, I rather hope they don't say it's the router, because you'll have a fair chance that the Post Office will pass the visit charges on to you....

How could they justify passing the charges onto me when the router is supplied by them and they phoned me saying we need to send someone out to you.

The way it happened was I phoned 1st line support who said this is happening too often let me raise this to second who will do further tests on the line and decide where to go next. They phoned me up and said nothing of any tests they did just said we need to send someone out to you.

Why would it be an LLU SFI visit? It's a BT Wholesale product as there are no LLU providers in my exchange

Solution is

1. Wait for DLM to get annoyed with modem dropping connection and raise target noise margin (this possibility runs for as long as you have ADSL, not just the first 10 days)
2. Get ISP to request a manual target noise margin change, 12dB is probably what you need to push sync down from 5Meg to around 2.5Meg

The DLM systems DO NOT force disconnects, the disconnects are just the result of the modem decideing the noise margin is too low for it to work, and the exact point this happens varies from router to router and the different firmware versions even.

An engineer attending will not have the expertise in this area I expect. Post Office while run by BT Wholesale call centre staff is not renowned for the most experienced staff.

Why would it be an LLU SFI visit? It's a BT Wholesale product as there are no LLU providers in my exchange

That's what an Openreach 'broadband fault' visit is called.

An engineer attending will not have the expertise in this area I expect.

Have no experience in dealing with 'constant disconnections' ?? Odd statement.

In terms of a line performing beyond expectations due to a CPE that is over utilising the available bits per bin then I would be seriously shocked.

If their test kit connects at a reasonable speed,then end of story, as the issue is a end-user wiring/CPE issue, and or CP provided CPE issue, which is not something openreach will want to touch.

The flowchats say dispatch engineer, who will probably proceed to try and improve line speeds even more, and not slow the connection down.

BT Wholesale is treated to the same level of service as TalkTalk and Sky.

Be sure that the ISP does not pass on the charges.

I just phoned to speak with them and they said as long as I've done all the 1st line support checks as requested which I had done then they're shouldn't be a need for a charge. He said if the fault is with my equipment then a £125 charge applies. I laughed and said by my equipment you mean your equipment you supplied which isn't working?

Just to add they send 2 routers by mistake and I've tried both and the same results

Here are the same tests plugged into test socket

noise margin upstream: 17.0 db
output power downstream: 19.5 dbm
attenuation upstream: 29.5 db

noise margin downstream: 6.0 db
output power upstream: 12.5 dbm
attenuation downstream: 61.0 db

Upstream Speed: 448 kbps
Downstream Speed: 5024 kbps

The BT Speedtester keeps failing

Here is an image of the BT Master socket (the only socket) with faceplate removed. No ring wire I don't think as it's brand new

http://img19.imageshack.us/img19/8495/img0355be.jpg

Edited by deleted (Wed 25-Jul-12 21:20:02)

If their test kit connects at a reasonable speed,then end of story, as the issue is a end-user wiring/CPE issue, and or CP provided CPE issue, which is not something openreach will want to touch.

If the disconnects are apparent on the test kit, then it will fault-able. Wiring issue, yep they can fix them too. If it's all OK on the end of said wiring, comparative tests can be made, etc,etc.