Thanks yarwell, you have opened my eyes to a few other things to be checked e.g. MaxDSL diagnostics.
However, the BT Engineer is coming this Monday, so hope he identifies any problems with my overhead cable to my property, and/or my sockets wiring.
BTW, I picked up on the bell wire etc., a week or so ago, and disconnected them @ the master socket. I only have two wires connected in the master socket now. I thought it made an improvement @ the time, but my speed seems to have dropped back to poor levels again:
Date Day Downstream Upstream IP Address Connection
12/03/11 00:13 Sat 3332 Kbps 507 Kbps 188.8.131.52 my home DSL
11/03/11 20:54 Fri 2628 Kbps 289 Kbps 184.108.40.206 my home DSL
11/03/11 01:20 Fri 3310 Kbps 449 Kbps 220.127.116.11 my home DSL
10/03/11 23:03 Thu 3314 Kbps 449 Kbps 18.104.22.168 my home DSL
10/03/11 13:51 Thu 3342 Kbps 443 Kbps 22.214.171.124 my home DSL
10/03/11 02:06 Thu 3294 Kbps 510 Kbps 126.96.36.199 my home DSL
10/03/11 00:21 Thu 3364 Kbps 509 Kbps 188.8.131.52 my home DSL
09/03/11 19:04 Wed 3131 Kbps 477 Kbps 184.108.40.206 my home DSL
09/03/11 01:48 Wed 3331 Kbps 509 Kbps 220.127.116.11 my home DSL
08/03/11 15:50 Tue 3365 Kbps 496 Kbps 18.104.22.168 my home DSL
08/03/11 15:24 Tue 3366 Kbps 496 Kbps 22.214.171.124 my home DSL
08/03/11 11:45 Tue 3348 Kbps 508 Kbps 126.96.36.199 my home DSL
07/03/11 23:42 Mon 2155 Kbps 350 Kbps 188.8.131.52 my home DSL
07/03/11 21:59 Mon 5098 Kbps 419 Kbps 184.108.40.206 my home DSL
07/03/11 19:55 Mon 5015 Kbps 698 Kbps 220.127.116.11 my home DSL
The last two readings dated 07/03/11, were taken when the computer and router were temporarily within a metre of my master socket, the other 07/03/11 reading, was the first one taken, with the computer & router re-situated back in our lounge - connected via some 20 metres of telephone wire extension to the master socket (where it's been for the last 5 years). In this time we have had SKY (2 years) and Orange (current ISP for 3 years).
Just to recap - Orange have very recently informed me that they have cranked up my line-speed to 14Mb (the max my BT config. can take - they say). So that's why I swallowed the story that it's splitting @ the external junction point, with 7mb going to the upstairs BT socket, and 7Mb to the master socket downstairs. As apparently very few Bband clients get the max speed in reality, the 5Mb I recorded when directly connecting the router & computer @ the master socket, seemed to support Orange's explanation. After all, I am only a qualified accountant and Registered HMRC Corporate Tax Agent, not a Comms Engineer
p.s. as I've got a spare Linksys router, perhaps I could connect that upstairs and see what speed that gives my son's laptop, while I'm feeding off the Orange router downstairs - could be interesting?!