I have a Cisco 2100 WLC with two access points 1130AG in different places. The system is working correctly, but occasionally one of the APs fails. They have the green led, but any client can connect, until I reset the AP with the option "Clear config except static IP" from WLC.
The clients detecting the WLANS with good coverage, but they can't connect.
This problem happens with the two APs, occasionally and separately. In the WLC does not show any "log" error when this happens, and this AP appears join correctly.