Just tried the BT PT and the diagnostic data came through OK:-
" Download speed achieved during the test was - 2.86 Mbps
For your connection, the acceptable range of speeds is 0.6 Mbps-7.15 Mbps.
Your DSL Connection Rate :3.46 Mbps(DOWN-STREAM), 0.45 Mbps(UP-STREAM)
IP Profile for your line is - 3 Mbps"
Not earth shattering speeds but the best I can get from a very distant 20CN exchange