BT Voyager 2000 won't work on Ethernet

[spunky]

ok, so i installed my new BT Voyager 2000 router this morning and it connects to the internet fine.

my laptop is connected to the router by wireless connection and works on the internet with no hassle whatsoever.

but my desktop pc is connected to the router by ethernet cable, and it communicates with other PCs on the network and with the router with no problems, but will not connect to the internet.

any ideas?

thanks

 

[Nodsu]

What is the IP configuration on the PC? Namely the gateway and DNS server settings.