@BDC1 You may wish to check what QoS parameter is set to in your Deco mesh, and increase it to unlock your new Internet speed. See Using QoS feature of Deco. I wish TP-Link documented that feature...

@Bonhard Something is obviously wrong with that Deco unit. Can you clarify: do you run Deco mesh in Router mode (default) or in Access Point mode? Also, is Dining Room Deco wired with Ethernet cable...

@Bonhard I have seen that occasionally, but not always with one of my Satellite Deco M9: when there are no wireless devices connected to it, M9 does not even show standard heading. I think all it...

@Uhmazing It will be faster, as long as laptop has gigabit LAN networking card. If your laptop only has 100Mbps LAN but can run on 5GHz WiFi, it might do better wirelessly when connected to M4.

@imikem The ideal networking gear settings is those that work for you. Three ways to connect Deco running in router mode to ISP modem/router. 1. Just connect Main Deco to ISP router. Unless you have...

@Uhmazing Powerline means using electrical cables to transfer data. From your question it appears that is not what you want to do with Deco M4. if I have a Deco in my room and connect a LAN-cable...