basically im running a dell 1520 with the dell wireless n card.... until recently i was able to pick up my nieghbours wireless signal that was an unprotected source... however recently it has allowed me to only connect to the network with a local only connection... at first i thought it was just this connection, however when i went back to school and tried to connect to any of the wireless networks there it is doing the same thing again and it will still only allow a local connection

any help would be appreciated