Same problem here in Technical University of Crete, Greece.

Wifi network Configuration:
- WPA enterprise
- EAP method: PEAP
- key type: TKIP
- phase 2 : MSCHAPV2
- ca certificate: WiFi.cer

I have installed successfully the last file(the certificate), I can access it from certificate manager, but when I am trying to connect to network it doesn't show up, just the option "None". After that I get an authentication error.

I install wicd to check with different netw. manager, but I can't run it.

Has anyone come across this?
Thanks