@Quobis Thanks for your kind reply. Yes it is old but it is the only relevant one I found. There is no similar situation in other threads. My current setup is 8 EAPs 110 V4 Firmware 5.0.1 Build...

@Quobis I have the same problem, and it disconnects the whole network as well. Tried everything mentioned same result over and over. The Ap works flawlessly in stand alone