@network_user Excellent result: you are getting speeds of your Internet link. WiFi range extender can do the same, so it should work for you. No need for WiFi mesh.

@MichaelArn WiFi backhaul link appears to be OK. You can also check under Satellite Deco page in the App if connection to that Satellite by devices is good, and I am going to assume it is. Another...

@network_user We are drifting away from the original topic and to the limits of my networking knowledge. I expect switch to route traffic between two devices connected to it without passing it to...

@MichaelArn Start with checking the quality of WiFi backhaul between Satellite Deco(s) and Main Deco. You can find that info in Deco app, example: In this example Satellite Deco Bedroom has...

@David-TP Submitted app logs according to instructions. All three HS103 Smart Plugs are reported as connected to Main Network.

@network_user Still, consider powerline adapters, especially if you could get them from the place with good return policy. While it is true that they are sensitive to appliances plugged to outlets,...