@Virgo No, does not help. That document seems to focus on signal strength and the correct password. My IoT devices always have the same password and many are close to the EAP650. As previously stated...

I'm having issues with this EAP650 AP and IoT clients (2.4Ghz). After about a day or so these 2.4Ghz-only clients disconnect and the Omada logs are filled with "WPA Authentication Timeout or...