Apparently the Fn-F7 option on the Lattitude 13 and other models causes breakage with Ubuntu 11.04 putting blocks on wireless. So if you’re getting: tail -f /var/log/syslog Jun 28 11:58:43 latitude13 kernel: [42125.406612] iwlagn 0000:0c:00.0: RF_KILL bit toggled to enable radio. Jun 28 11:58:45 latitude13 kernel: [42127.020863] iwlagn 0000:0c:00.0: RF_KILL bit toggled to disable radio. [...]
