However, it didnt work, until I disconnected, turned the power off my Wi Fi, unchecked the tab in the authenticate dialog box, clicked ok, then switched the Wi Fi power back on, and reconnected.I have a laptop with a Dell D630 with Wi Fi power switch on the side.
To fix, you go into the properties page of your wireless connection, go to "Wireless Networks" tab and then to Properties of the chosen wireless network you are trying to connect to.
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.
I recently bought a new Linksys wireless router and after setting it up with basic WEP security, I tried to logon from my laptop and was successful! So then I tried to connect from my desktop computer that has a wireless USB adapter attached to it and I ended up getting this error message: Fabulous! I checked my settings on the wireless router to make sure I didn’t accidentally setup certificate security, but found no such thing.
Also, since I was able to connect from my laptop with no problem, it led me to believe it was something wrong with my desktop.