Hi,

I have 5 Deco P9s in AP mode mesh.

Modem -> Router -> AP Main P9  >> Wifi >> 4x satellite Deco P9 Wifi + PLC 

When I connect satellite P9s together with ethernet all is okay.

If I add ethernet only between the Main and a satellite P9 (No switch) All decos show a Solid red light.

Modem -> Router -> AP Main P9  >> Ethernet >>  4x satellite Deco P9 Wifi + PLC 

Unplug the ethernet and all returns to normal.

Main deco is on a separate circuit to the satellite Decos. Only the main Deco gives full speed (300Mbit) . All satellites are 30 - 50% speed at best (100-150Mbit)

Any suggestions?

Thanks.