For detailed information about a Windows-based authentication infrastructure, see Wireless Deployment Technology and Component Overview.
It says something about windows not finding a certificate.
The weird part is that I was using WPA TKIP with the passphrase and it was working fine.
The Network Connections folder and the notification area icons provide information about the state of the authentication.
If an authentication requires additional information from the user, such as selecting one of multiple user certificates, a text balloon appears instructing the user.
Two-factor authentication is a more secure method of verifying or validating your identity.