@CesarVegas Start with checking signal quality between Decos. You can find that in Deco app, under Signal Source. Touch Internet icon at the top of Deco app, then touch specific Deco and you'll see...

@GuilhermeJorge Option 1 will not work. For it to work, you must place Main Deco (you call it Router on your picture) between Server and Switch. Main Deco in router mode plays the same role as Archer...

@Leoccl When it works, all one has to do is connect PC to Deco with Ethernet cable. If it does not work for you, try this: Connect PC to Satellite Deco with Ethernet cable Reboot PC Open command...

@Idan99 The process. 1. Keep your ISP router in "router" mode, not in "modem" mode. "Router" mode is default mode, so if you haven't messed with your router configuration settings after you added...

@sjaak28 Devices on Guest network need DHCP and DNS services. These are provided by the router. If Guest network devices can't access the router, they can't get IP address and can't access the...

@TornadoTP In regard to having all devices on the same subnet. Please take a look again at screenshot of my Deco mesh WiFi configuration settings I posted, see toggle at the bottom. All my devices...