@kallekoo Plc (powerline adapters) that you tried, what is their brand name and model number? I had successfully connected two Deco with powerline adapters.

@Fabson Archer AX23 is not compatible with Deco mesh. You can turn off its WiFi and use it as wired router together with Deco mesh, or research EasyMesh compatible gear from TP-Link that will work...

@sr0981 If you need Web management interface, you should return Deco and try different WiFi mesh. With Deco, it is only through the app on smartphone. I feel your pain, I am old school Web/cli...

@nick100998 The maximum WiFi speed you could get from Main Deco M4 will be in the range of 500Mbps-600Mbps. It is because M4 only supports WiFi5 protocol. For M4, WiFi5 theoretical speed limit is...

@Colm1 In Deco app, under Network Settings/Network Name (SSID)/Advanced there is "Hide Network" option. Make sure it is turned off. That's the only thing I can think of for WiFi network name not to...

@abicin You must be hitting limits of WiFi5 wireless protocol that M4 supports. Theoretical limit is 860Mbps, realistic, depending on radio interference and other factors: 60%-70% of that. Getting...