The controller is not 100% real time. client timeout is 5 minut I think and access point use about 2-3 minuts to show disconected.

@DigitalGerry From https://omada.tplinkcloud.com/ Or you can unbind from controller. log inn localy not via cloud

https://omada.tplinkcloud.com/ and undbind form action menu

Try to connect your laptop (turn off wifi) to the unused rj45 with cable to POE adapter on remote mesh acccess point and test the link. I guess you have 350-450 Mbps, When using mesh the trafic going...

Only EAP225V3 and EAP225-Outdoor support mesh, EAP115 dont support mesh.

The controller have to run 24/7 to collect data.