can't connect to wireless

Hi all.

this is really bugging me. I have setup a 411AR at a client as an AP BRIDGE. they have a server running DHCP, I have setup a bridge and added the wireless and ether ports to the bridge, as well as setting up DHCP relay on the bridge port but pointing to the DHCP server. My problem is, as soon as I add anyform of wep or WPA key, clients cannot connect to the network. leave the encryption open and it works perfect. absolutly no problems at all. I have done this exact setup many times before and have never had this much trouble.

Any ideas of what I could be missing?

Thanks in advance

what do the logs say? if you want more details, enable the debug logs for wireless.

also, what is the problem in the client side - is there any message, or error ?