@ConcernedUser More Ethernet cables=better network performance, so if you can at least connect the nodes via Ethernet that will work much better.

@stuartlowb All Decos are compatible with each other. Any 'X' models are better than the M9. (Except maybe the X10.) See https://www.tp-link.com/au/home-networking/deco/

@XManag3r There's only three ways to improve the speed (assuming nothing is faulty) - try relocating the nodes, connecting them by Ethernet. Also, check in the app which nodes are connecting to which...

@Edgat Is it new?

@mstewieirl The web interface allows flashing from a file, but if it won't connect to the mesh that's no use. Looks like you need to return it.

@Zlink You can do any combination as Deco supports wired/wireless backhaul and router/AP modes. My setup is Asus router to my cable NTU, and multiple wired/wireless Decos in AP mode. (I use a...