Wifi or ethernet? In order to help, we'll need to see output from:
$ netstat -rn
$ cat /etc/resolv.conf
Open a terminal to issue those commands, and post the output here - in 'code' tags, please. (Since you can't post directly from the OS with a non-working 'net connection, copy the output to a thumb drive.)
Last edited by anomie; 03-17-2011 at 03:29 PM.