now you hub is working can you post the adsl stats?
Download speedachieved during the test was - 453 Kbps
For your connection, the acceptable range of speeds is 400-1000 Kbps.
Your DSL Connection Rate :768 Kbps(DOWN-STREAM), 448 Kbps(UP-STREAM)
IP Profile for your line is - 676 Kbps
line looks like it is holding just now
as you have only the one socket does it have a test socket as shown in john46 diagram? if so are you connected to that test socket?
with your attenuation of 71/72 I cannot see a very good connection and probably about 1mb max
I'm on my third hub as well. (see Orange Power Light of Total Death)
It would seem that there has been a batch of dodgy hubs released to the market in the last 4 - 5 weeks. I'm sure that BT are aware of this problem and have checked what batch is effected and withdrawn them.
Well, you never know....