@BAC Ethernet ports should just work on Deco units. I have Deco M5, I run my Deco mesh in Access Point mode, haven't had issues connecting devices with Ethernet cable to M5. If you'd like asistance,...

@MarkG3083 I wish I had your service provider. I could use free M5. I run Deco mesh which consists of two M9s, Main and Satellite with wireless backhaul, also one M5. Usually my M5 is wired, but once...

@Otredomo Otredomo wrote I understand Ethernet backhaul will work, right? Even if they are quite far and the WiFi signal is poor. Ethernet backhaul works when Deco units are connected to each other...

@MVDM Here is workaround. Configure Guest Network to run on 2.4GHz only and connect smart switch to Guest network SSID. For best performance, configure Main Network to run on 5GHz only, if you have...

@RicardoMT With my Deco mesh, I am using TRENDnet 8-Port Gigabit GREENnet Switch, TEG-S82G.

@Flopsaut Ethernet through TV cable works on same idea as poweline adapters, but it is better. You could get gigabit or more over TV cable, and there is little noise in it usually, which means...