@Connectionloss It seems the more SSIDs and the more clients are connected to an AP, the more often the connection problems occur. On the test AP I habe one connection drop within the last 11 hours....

I did a soft reset and added one SSID by one except that one with an access control rule, because I didn't see an option for access control rules in standalone mode. There are no connection drops...

When using a Wifi with Fritzbox 7590 it is stable for days without any drop of Wifi connection. Thats the way it should be. Please help me to do this with Eap 110 Outdoor, too.

@Somnus Channels are fixed and 2,4 GHz only. EAP 110 outdoor has no 5 GHz support

I have 4 EAP110 together with Omada Controller. A few times a day my smartphone suddenly has either no connection anymore or it connects with a very weak signal to another AP located further away....