2.3.5.30 - ORBI - Firmware AutoUpdate? Severe Problems with Satellite

Someone could help me in order to know why my devices appear with the referenced firmware? I didn't perform any action to start an update procedure and the firmware was installed without any single message . 

The real issue is that now I have a terrible problem with the satellite , because no devices are connected to It,  and security cameras are now out of service , the alarm also , or have a poor and terrible service because of the distance to the main route (rbr50) .

Al lthe devices in the WiFi network are connected to the Main Orbi router than the Satellite that supoosed it should be , so you can imagine the performance of many of them . 

Please let me know how to solve the problem and also if an automatic update was run without any notification to the user .  

Urgent Support is requested