The access point can’t join the controller and the debug output of the access point shows outputs like:

„%CAPWAP-3-ERRORLOG: Invalid event 10 & state 5 combination.“

„%Error opening flash:/ap3g2-rcvk9w8-mx/info (No such file or directory)cisco AIR-CAP2602I-E-K9 (PowerPC) processor (revision A0) with 180214K/81920K bytes of memory.“

This is based on a faulty AP image and can be resolved through a console session on the AP and following commands:

• debug capwap console cli
• en
• conf t
• test mesh mode local

This forces the AP to get a fresh image from the wireless controller and he’ll join the controller after getting the image.