Hi

I have three rooms spread out across my house, all connected via ethernet back to my router/modem for internet connection

I want to provide a Onemesh wifi everywhere 

If I install a Deco X50 in each room, with each X50 plugged into the ethernet network, will the backhaul between them happen via the ethernet connections they have, or will they try to do backhaul via wifi (if they are in range of each other?)

I do not want wifi backhaul to happen – I just want the ethernet to provide the backhaul