Unidentified network after updated to Avast 2014 IS

Hi all,

I am using Win 7 professional 64bit and living in a student accommodation with a fine Wifi network. It turned into “Unidentified Network” after I update to Avast 2014 - Connected but cant browse anything. Everything goes fine if I uninstall Avast.

Can anyone tell me what kind of problem is it and any methods to fix it?

I am sorry for my broken English :-\

Many thanks