I see the following in Airwave on one of our AP105s: Mon Jul 1 10:46:43 2013 System Status changed to 'AP is no longer associated with controller' Mon Jul 1 10:41:09 2013 System Status changed to 'Controller is Down' Sun Jun 16 07:36:54 2013 System Status changed to 'AP is no longer associated with controller' Sun Jun 16 07:34:32 2013 System Firmware changed from '6.1.3.2' to '6.1.3.8'. Sun Jun 16 07:33:44 2013 System Status changed to 'Controller is Down' Sun Apr 21 06:29:56 2013 System Status changed to 'AP is no longer associated with controller' I just wondered how it knew that we had upgraded if it's down?