@AntMUFC The double NAT error on XBox means it connects through two routers: Asus and Main Deco. The fix for that is quite simple: configure Deco mesh to run in Access Point mode. See How to set up...

@ArjanBr You can't do that with Deco mesh, unfortunately. If Main Deco is connected to Fritzbox router, there is a workaround I can suggest.

@Babi2002 Have you checked if your Satellite Deco have strong WiFi backhaul signal to Main Deco? Because, if they are not optimally placed, have weak link to Main Deco, this could cause interruptions...

@Handpol You do not need to use fastest Deco as Main Deco when Deco mesh runs in Access Point mode and everything is connected by the Ethernet. This TP-Link recommendation is mainly for Deco Router...

@Jeffg53 Very often it comes to the fact that such devices do not handle well dual-band: same SSID broadcasts 5GHz and 2.4GHz. Try this: in Deco app enable Guest network on 2.4GHz only, have these...

Jeffg53 wrote @Jeffg53 I'm back and installed the new modem/ router, and turned off wifi on it. I now have only Deco for wifi. When I was using it on router mode, all was good. I then changed to...