No access via Internet explorer

I have a win2K laptop connected to Belkin ADSL router modem no probs. I have a new winXP laptop which I can see excellent network but no internet access. Set up ip address 192.168.2.41 manually as per manual. Set up default gateway to 192.168.2.1 and dns servers as 64.160.192.70 and 206.13.29.12. Can not ping 192.168.2.41 but can ping 127.0.0.1. Can get adsl modem connection at 576 but cannot access internet explorer. On ethernet connection to modem router can ping 192.168.2.1 but no IE. Can ping www.yahoo.com but no IE again. Wasted hours on this. Can anyone help- ps sorry if this is in the wrong place. Don’t know enough to be sure.