@Huw53 This is not Deco mesh configuration setting. You'll need to change that on every device at your household, such as iPhone, iPad. Also, on Android devices. When you bring new device to your...

@David-TP I noticed the same thing with my Deco mesh. My Satellite M9 Plus reports "Fair" signal, and it is not far away from Main Deco. I run Deco app on Android. Here is my story, with pictures. My...

@Jesus88 Can you share network diagram or just describe how they all wired? There must be switch, possibly more than one. I may have an idea of what is wrong, as there were two similar cases I know...

@mlj There could be, indeed, network loop because after you plug Ethernet cable to Satellite Deco for the brief period of time it has both WiFi and wired link to your home network. Dumb switches...

@mlj You ask if this is going to work: Yes, it will. Still, there is a better way to do it, with Deco mesh running in Access Point mode. You can keep Main Deco connected to the router and have...

@Maksidaa That looks like defective unit, but for the certainty I would recommend the following test: have that unit connected wirelessly to Deco mesh. Position it in such a way that it reports...