@valiant3600 Well, we tried. There is nothing else that can be done. Dual band (2.4GHz and 5GHz under same SSID) could cause troubles. I have old smart thermostat, it can't handle dual band. Fast...

@Octavia53 Thanks, that's the right one. It appears, all you need to do is connect Main Deco with Ethernet cable to 'Power hub' and Deco mesh should work. To make sure Main Deco understands the...

@GyanAccessFreak This should work. Also, less switches - better. Not the other way. 7-8 Decos, most of them wired, is possible. See How many Deco units can I add to my Deco mesh network? Also, why...

@Octavia53 It is possible your Main Deco can connect to 'Power Hub' without issues, even if it runs in Router mode. There is just more things to check. In that Advanced page, on the top, what does it...

@valiant3600 I am going to ask you make changes to your Deco mesh, that may reduce WiFi coverage and speed. So, find time when you can do them. This is for troubleshooting purposes and you can easily...

@Octavia53 Do you run your Deco mesh in Router mode or in Access Point mode? You can find that information in Deco app, under Advanced. Check what Operating Mode says. If you run Deco mesh in Access...