@Quiquepr It's not in my app for the PX50 either.

This vanished for me since a firmware update a while back.

@JulieT66 I had the same problem on my PX50 when adding an ethernet backhaul to the mix, only solution was getting support to give me a custom firmware to disable PLC and wifi backhaul on the...

@Alexandre. Not in access point mode.

There won't be any manual channel change options, they just tease us with the possibility of changing it to keep us from returning the equipment.

Ask TP link for a custom firmware to force the use of ethernet backhaul, it fixed my problems of the mesh crashing to red lights.