Router, wireless card not talking

Greetings,

I am in the process of setting up a wireless network in my home. I have a Linksys modem(G), a Belkin router(G) and a Belkin wireless card(G) installed in another computer. All equipment is new and all computers are XP w/SP2. The modem and the computer the router is connected to work fine. I cannot get the wireless card and router to communicate. The distance between them is roughly twenty feet through the floor. Also, the router has the latest firmware installed. I have tried all eleven channels. Trying to work this out with a technician in India is also VERY frustrating. Any help or ideas would be most appreciated.

Thanks.

Bill

 

Try this link for trouble shooting -
http://www.ezlan.net/wireless.html