Xp pro wireless connect to server 2003

Hi all

I work at a school were we have around 50 workstations and one domain server running, and now we have 10 new laptops running xp pro sp3 and they have to run wireless.

I have it all setup, i use a router that is connected to the wired network.

But when i logon, the network starts up fine but after 40 sec the connection to the server drops but the internet still works fine, and after a litle time the connection is back and drops again.

When i login as anybody and use the cmd gpupdate /force and press yes when promted, the computer restarts and then the net connection works for maybe five more reboots, and then the same thing happens.

If there are some specs needed i’ll post them.