You may want to log into the linkksys (modem - router). Log into linksys through internet browser "192.168.1.1" or what ever your network is using. Recheck if you are using router as DNS server or your PC's are using static IP's. Sounds like your laptop is connecting but not getting an IP. You can check this by double clicking network icon down by clock and hit support tab. If PC is not getting an IP it will be either 0.0.0.0 or a 169.0.0.0. range IP. Or go to start run, type in "cmd" the "ipconfig/all".


If your settings all look good I would suggest you start from scratch setting up WEP again.

Hope this kinda helps a bit !