It basiclly says it all in the above but i will explain in abit more detail.
Today i got a 30MB super hub from virgin media and i have registerd it with my laptop and rang my internet provider to activate the new super hub.
Everything works fine (eg. my laptop and pc) but when i go on xbox live it disconnects me after 5 minutes of being online, so i rang my internet provider and they said that it shouldn't be happening and if it is then its something to do with XBL, so i decided to come on here to ask for help cause people on here normally give SOLUTIONS to problems.
THANKS IN ADVANCE