Just a couple of quick questions. What is the AC5400 function in this configuration? What benefit do you think you would gain by creating multiple Deco Mesh Networks separating the M9+s and the X90s?...

@Jianny "Can I use Ethernet backhaul to connect 2 x M9 Plus? The slave M9 Plus is blinking red every 30-60 seconds when connecting both, they are running on AP mode." You should only have ONE Deco...

@AhJib Advanced, DHCP Server There you can set Primary and Secondary DNS.

@Lonewolf1038 Hello, Client devices listed under "Offline Devices" means that the dev ice is no longer connecting to your Wi-Fi on the Deco Mesh. The simple fact that it is listed under "Offline...

Sounds like a warranty issue. Hopefully you registered on purchase and they are within the warranty period.

@GFabian The switch must get it's ethernet feed from the primary Deco not from your other router. That way the ethernet from the switch to the sattelite Deco will use the Ethernet backhaul instead of...