This one has me beat! XP PC was on TalkTalk. Owner changed to BT. Owner set up router, but setup CD could not complete the setup. Just plugging the ethernet cable in, icon says connected, but clicking IE displays 'could not be connected'.
A laptop connects OK both wirelessly and by the same cable.
Tried a wireless dongle - says connected, but IE page won't open.
Have brought the PC home where it connects to the internet with no problems!
It's a new BT HH3 provided by BT and, as mentioned, a laptop (now 2, as I've tried my netbook) connect straight away when plugged into the ethernet port - it's just the PC that can't access the internet.
Still no joy. I was, however, able to reconnect and access their old Netgear router and configure it for BT (unlike the Hub, which I could not access from the PC). They're going to ask for a replacement hub and see what happens then!