Hello,
I had working lab with 4402 controller, 1121G AP and 4.1.185.0 sw.
After upgrade to 4.2.61.0 it looks like AP won't load new image, on WLC is a lot of AP Associated / AP Disassociated messages in log. I have tried same thing with 2106 controller and same thing happens. I have looked in Bug tool but there isn't any similar bug. Any ideas?