Recently I tried to connect to my Wi Fi connection in the office after installing 14.04 LTS. Surprisingly it was not connecting even though my settings were all correct. So I ran into some bug tracks and found out why it is
When WPA & WPA2 PEAP are not using the Certificates it is not working correctly in 14.04.
There is a line in the Wi Fi configuration files that are located in the folder
First of all list out all the connections you have and vim or gedit the one you need to use. If it is a fresh install you won’t have vim installed so use gedit
cd /etc/NetworkManager/system-connections ls sudo gedit ConnectionName
Afterwards, remove the line containing