Radio operationally down but admin up

[tdennehy]

I see this message come in from Cisco Prime every now and then on a 1242.  I see other people have asked the question a few years ago.  Has anyone else taken a look and figured out what the problem was?

1. Alarm Condition:Radio administratively up and operationally down
Message: 802.11b/g interface of AP xxxxxxx is down: Controller xxxxxxx

[Leo Laohoo]

This sounds like Dynamic Channel Assignment (DCA) at work.  

Check out your setting and make sure you make DCA refresh itself every 24 hours.