Just select YaleSecure, when the “authentication required” window opens do the following:

Authentication: PEAP
Anonymous identity: leave it empty
CA certificate: (None)
PEAP version: Automatic
Inner authentication: MSCHAPv2

and of course fill in your username and password, click Connect, it will then open a new window saying that you didnt choose any certificate, just click Ignore

that’s it, this worked for me

Reference: http://ubuntuforums.org/showthread.php?t=1087331