We have a few (10) PC at my work. All but two connect through a switch (Linksys SRW2016) to our T1 internet which goes through a SonicWall. The two laptops connect to a seperate wireless router that is then plugged also into the aforementioned switch.
The wireless computers can connect to each other, but they cannot connect to the LAN network or internet. One laptop runs XP Pro SP3, the other Vista Home Premium.
I have tried both a NetGear and Linksys wireless router with same results