Distance:- Direct: 966 metres
(appx)* By Road: 1.77 km
---
Fixed ADSL: 512 kbps (0.5 Mb)
DSL Max : 500 kbps (0.5 Mb
---
Although it does say my line is Unable to support Fixed Speeds
Thank you - from that I can backward guess what your RAG test result would be too (something like REGEGEC).
* You didnt post that bit - so can you just confirm that this is correct before proceeding with the next bit.
As suspected, at some point your line has obviously been declared by the DLM system as being unable to cope with speeds any higher than 500 - despite you having previously had much higher speeds... and has been MAXDSL rate limited to 500 kbps.
As mentioned previously this tends to occur if your line is whats considered a "cronic flapper" by the DLM system.
I strongly suspect that this may have occurred at the time of the power surge - just like the other example that I linked to earlier.
You now however have proof that BTw need to investigate your line and you need to insist that your case is looked into for the following reasons.
(You can use the following termanology on your support ticket it if helps)
~ Your line syncs at a maximum of 576 because the results of a RAG test shows the line as being marked REGEGEC (*see above) and has been rated limited at the DSLAM.
~ Your line has an attenuation of 26/27dB with an SNR Margin of 29.0 - 35.5db which should be sufficient to give you the full (or near as damn it) 8Mb
~ Your suspected line length is around 2km which also should be more than sufficient to cope with much higher speeds than 500 kbps
~ You previously sync'd at 7Mbps until a power surge which has now been fixed by EDF
~ Neighbouring properties are receiving around 7Mbps
Insist that they get BTw to look into this matter - and if it means they do have to send out an engineer so be it.
Good luck and let us know how it goes.
------------
The only thing that has confused me is where you said both you and your neighbours line had an attenuation of 51dB at one point - then you said yours fluctuated that high too. In view of your distance from the exchange neither you or your neighbour should be seeing an attenuation that high... actually since your neighbours line is marked at 7100 and is acheiving 8Mb speeds this is highly unlikely.
Therefore Im going solely off the figures that you have provided in this thread and the several sets of stats provided herein.
If your line does attenuation does fluctuate that wildly - then you do need to insist that an engineer is called out anyhow.