Hi Mike
Sorry Ive not been around for the past few days - therefore am quite surprised that this hasnt got any further forward :/
To me, what you said on the 20th seems the most telling
My line went pear shaped day before yesterday, voice line crackly, dsl dropping. Today BT came and switched pairs and cleaned up the voice line. [.... /snip /... ]
For me the issue was that immediately the pairs were swopped my sync went down to 160 from 3000+. I'm coming out of the master socket via a face plate splitter directly to the router, nothing had changed my end in equipment terms before and after the swop.
If your target SNR has increased from 6dB to 9dB, ... whilst setting the line back into training mode, may help you get a slightly higher sync rate.. and is something that I suppose has to be tried. I dont see that it would change things back up to 3000+ ... IMHO thats rather a large difference between the sync speeds for it to be anything to do with any profile that may be set on your line :/
The fact that its below the lower threshold breach should start ringing alarm bells somewhere too. To me the "new pair" obviously has a problem somewhere.
However still a long way away from the 4000-4500 I was getting before the pair swop. As a coincidence had 4 BT guys today pumping out the connection box at the bottom of my road and redoing the connections,
Obviously I dont know - but makes you wonder if that was the cause of the original problem
before they swapped the pairs over.. and this particular pair has its own problems.
Still irritated by the increasingly artificial split between phone and DSL which BT seems to insist on, I'm paying for a line which supports both POTS and DSL.
Hmmm therein lies the problem - and not something BT always seems to agree on, and prominence always seems to be on voice.
The piggy in the middle with BTw <-> ISP<-> End User doesnt help matters either.
You 100% have my sympathies and I know how frustrated I damn well would be.
I dunno how the heck your ticket managed to get "closed" either... NOT good!
Chris/James.. any more news on this one.. because, so far it doesnt look like the reset has made any difference.