Click on Properties once you select the wireless network that is having problems.
Then go to "authentification" tab and untick the box saying "Enable IEEE802.1x to the availiable network" and that should solve your problem Graham UKRight, Graham's solution worked for me.
I had been able to connect previously, but the connection would always indicate that it was validating.
Because I have a switch to disable the Wifi power, this seemed easier/safer, and it worked. thanks, Solution: remove whatever "preferred networks" are displayed in wireless netwok card's property page, n click ok. happens when u switch to a new router or use a new different SSID.
cheere Hadn't read all solutions so I apologize if I'm repeating someone but all I did was go back to Belkin router setup utility, or (192.168.2.1) and clicked "wi fi protected setup".
Im on the D-Link DIR-655Wireless Router and im using XP PRO SP2 if that helps.