wireless network gaming woes

HELP!! i am running an intel USB wireless network at home. Server PC is running w2k, client is running win98. The wireless network runs great! I can see the other system, drives are mapped, and sharing is on. No troubles there...BUT...Whenever i try to play a LAN or IPX game, the puters wont see each other. That is, they cannot find the game that the other system is hosting. I have tried hosting with each one, and the same results every time. I have even tried to go out through the internet (DSL) to connect each other that way. Still nothing. I am thinking that it is something to do with running win2000, but why would that stop w2k from connecting to the win98 system? I am lost!! All other network functions work great except the gaming....i sure hope someone can help!!