Ok here's the problem.

Im working on a problem at a school computer lab. The school is involved ina program using a laptop computer lab. what they want is a wreless network, connected ot the internet and all 32 laptops able to connect to the net, and to the printer at the same time. 11 of the machiens are using win xp the rest varry using 2000 and 98. all of the 2000s and 98s work fine but the xps wont. they have internall wireless cards and when you go into wireless network config it shows the wireless signal as strong nearly perfect. but no interet or connection to printer or other computers. if you use cable to connect to the wireless router (it has 2 rj45 porst also) they will connect to the interneat and to the other computer. We installed the latest drivers, we tryed rolling back drivers, but no luck.

what could be wrong?