Win2K Clients Accessing Win2K Domain Server via WAP – “HELP!!!”

Can anybody help me in addressing this problem?

I have changed the network infra of some of our school’s computer laboratory from a wired network to a wireless network, using LinkSys WAP-G. The clients’ computers are using Wireless USB Lan and the OS are Win2K. The WAPs are connected (wired) to a Network Switch wherein my Win2K Domain Server is also connected (wired). My problem is whenever the client’s pc logs in to the Domain an error occurs, “A Domain Controller for your Domain could not be contacted… “.