@Alexandre. THANK YOU BY THE WAY FOR YOUR TIPS AND THOUGHT YOU LED ME TO EXPERIMENT WITH A FEW CHANGES WHICH HAS LED ME TO FIND THE ISSUE. MUCH APPRECIATED

@LiaLin I tried switching Kitchen to be the main unit. In that case Rumpus and Guest Bedroom connected via ethernet, but Living Room went to wifi. I have 3 different ethernet cables running to the...

@LiaLin A couple of things that really irritate me about Deco: 1) The app doesnt show you the connection speed on ethernet of any devices. You should be able to see the backhaul speed between every...

@Alexandre. Network layout is the former Internet - Ubiquiti - Switch - Deco x4 The switch is a Netgear XS508M The 4 XE200's are: Living Room (Main) Kitchen Rumpus Guest Bedroom Typically Kitchen...

@Alexandre. They are in Access Point mode as I have a Ubiquiti router as my main interface to the Internet The Ubiquiti connects to a 10gbe switch which all 4 XE200 Deco units connect to. I can never...

I have 4 Deco XE200 units connected to a 10gbe switch running in AP mode. Always one of the three non-main XE200 units will goto wifi rather than ethernet mode saying WAN port speed error. If I...