@Vincent-TP You are right. at ~22:50 I've disconnected all 5ghz devices and then after 30 minutes EAP switched back to my channel. Everything is OK. Thanks. here's log:

Okay, next time radar detected I will disconnect all clients from AP and see how it will switch back. Thanks.

@Vincent-TP Hi, thanks for reply! And thanks for your answer "it could also switch to other available DFS signals at that time." It seems to me that the access point stops recognizing that the DFS...

In firmware 1.3.3 Release Note: On current latest firmware 1.3.7 Bug not fixed

My settings: EAP 653 when radar is detected, instead of switching to a non-DFS channel, it switches to another DFS The second problem is it doesnt switch back to my 52 channel until I reboot AP

Again, radar detected. no 30 minutes switch back to my DFS selected channel 52. it takes 10+hours to switch back so best way is to reboot AP. please fix it. .