I assume that some punters will have complained to Ofcom about the removal of the only diagnostic tool which helped the consumer to diagnose his line problems.

Simon

Actually a provider with enough customers, or our speedtest (now we know the locality of a tester) should make it possible to track exchange/region issues.

In other words plot the speeds on a per exchange basis.

Remember LLU customers don't have this sort of tool, so I cannot see Ofcom being overly concerned.

I have been having similar issues (on my brothers connection), but today as if by magic, it's suddenly quite good for a 2M BB+ line:

from http://www.speedtest.bbmax.co.uk/
Download Speed: 1936 kbps (242 KB/sec transfer rate)
Upload Speed: 135 kbps (16.9 KB/sec transfer rate)

and from TB: http://www.thinkbroadband.com/speedtest/results/id/11719334914594347949.html
Speed Test Results
Date 20/02/07 01:04:44
Speed Down 1888.53 Kbps ( 1.8 Mbps )
Speed Up 238.81 Kbps ( 0.2 Mbps )

I've seen good performance most of the evening from 9PM to 1AM.

Assumptions are the mother of all bad words.