So I just set up my 3 deco m5 mesh points. I have 1Gbps fibre and am getting 400+ over wifi from the main deco which connects to the modem. I then connected the second deco upstairs via a Cat 6 ethern

I recently bought two Deco M5. The connection is as below: Modem-->Deco 1(main)------Deco 2(ethernet). Deco 1 to Deco 2 over ethernet backhaul. I have 200 Mbps plan, and on main Deco 1 I get the full