Called Talk Talk and they gave advice that did not work either, and despite repeated requests have not come back to me!
Unfortunately you''ll find more often than not that that is the norm.
EDIT
Make sure you know the username and password and back up any settings you have made, then do a factory reset on the router and see if it connects to the PC through the ethernet cable.
What OS (operating system) is on the PC, e.g. Windows XP, Visa, 7 ?
Edited by Apprentice (Thu 13-Jan-11 14:00:01)