I am running now ubuntu 13.04. I had wifi at my home, and it was working fine till something happened I don't know exactly that cause my internet connection (not wifi connection) to be lost on just my home wifi. If I connect to other wifi internet works, but this particular wifi isn't able to see internet unless I use a VPN connection of my university samba account. I tried to delete it and add it again but problem still there.
Any suggestion please ?