I have today run Update manager and its now working fine. I didn't notice if this updated my kernal but it may have done.
Does the following output make it clear? warren@dell:~$ uname -a Linux dell 3.2.0-31-generic-pae #50-Ubuntu SMP Fri Sep 7 16:39:45 UTC 2012 i686 i686 i386 GNU/Linux warren@dell:~$ sudo iwconfig [sudo] password for warren: lo no wireless extensions. wlan0 IEEE 802.11abgn ESSID:"HS-1gid46vaylveagu59b3ks232h" Mode:Managed Frequency:5.18 GHz Access Point: 4C:60:DE:6B:85:4A Bit Rate=117 Mb/s Tx-Power=17 dBm Retry long limit:7 RTS thr:off Fragment thr:off Encryption key:off Power Management:off Link Quality=65/70 Signal level=-45 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:0 Invalid misc:46 Missed beacon:0 eth0 no wireless extensions. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1063245 Title: Atheros AR9462: Wifi Band N - WPA Does Not work, No security OK To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1063245/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs