@ramzinassar Connection preference is just a suggestion. It is like at grocery store, where cashier waves their hand to invite you to their checkout lane, but you ignore that and go to different...

@JontyG If you could sign for 500Mbps Internet, that would be the easiest solution. It should double WiFi speeds you see. If not, 3-band Deco is an option, but do not expect miracles. Dual-band such...

@JontyG What you have with M5 is expected: each hop cuts speed by half. Still, Main Deco can do better: in my tests with gigabit Internet link Main Deco M5 can deliver up to 500Mbps. Before replacing...

@Angela7 Try configuring Deco Main Network to run on 5GHz band only: Repeat speed tests after that.

@Machineage I think going with three Deco nodes the way you plan should provide good WiFi coverage for Master Bedroom. In regard to future proofing. Both M9 Plus and X50/X55 can do just fine with...

@tinyDANster Do a simple test that will help with troubleshooting: Bring Main Deco to where AT&T modem or switch are, and connect AT&T modem through Main Deco to the switch AT&T modem <--Ethernet-->...