HI, if you connect two decos with ethernet cable, the ethernet would be the priority. Powerline Backhaul will take effect automatically as long as they are under the same power grid.

Sorry to hear that your call and email interactions with our Support Team previously are less than satisfactory. Please go to Advanced and turn off the Fast Roaming and see if it make a difference.

@Warrenjeannemay Hi, The M5 may obtain an invalid IP address from the cable modem, since the modem needs some time to connect to the internet, it may give the M5 a temporary IP address. Please try to...