We have three computers trying to share a cable modem for internet access. One is a G5 connected through ethernet to the Airport (snow version), two is a blueberry i-Mac connected via airport card (sees and connects to internet just fine) and three is an emachine pc running Windows XP home.
I've been through all the steps to make the connection and it comes up on the PC, but then when I say okay and close the window, the connection has dropped. No signal strength is ever detected. The Airport is only about 2 feet from the PC so I know it's not a matter of distance. It worked for several months and then one day just stopped.
Any ideas about what to do would be greatly appreciated.