Hi

I have 3 Deco M4 units, one connected in the lounge(main one), one in the kitchen and one upstairs.

Having some connection issues and I've found that working upstairs in a bedroom and devices connect to the main unit in preference to the M4 that is upstairs in another bedroom.  The devices are Xbox and laptop both on Wifi.  Dont know why they dont connect to M4 in the bedroom as it is a lot nearer?

Is there anyway I can test the signal strength of the unit upstairs or speed?  the light is green on top