@Glenvdm In my house, the longest Ethernet cable that connects one of my Deco to switch is about 20m. It is Cat 5e and works just fine, but it is good quality cable. Cat 5e as long as 80m is still...

@PaulArbour On Main Deco, one port is WAN and another is LAN, Deco will automatically figure which is which. On Satellite Deco, both ports are LAN and there is no difference between them. Check this...

@Hebla Guest network is not the feature of mesh system. Many modern standalone WiFi routers offer Guest network. It is used exactly how you think it would: for guests to connect to. They can have...

@Sorin7559 Makes sense to return Deco X60s and try different WiFi mesh. You either have defective set, or some sort of incompatibility between Deco and your wired home network.

@ChrisAhlund Don't bother with blacklist: smart kids with modern mobile devices can connect to your WiFi with randomly generated MAC addresses, making blacklist useless. The only option you have is...

@Floob This is exactly what I've done at my house: configured Deco mesh, turned off WiFi on ISP Router and switched Deco mesh to Access Point mode. With Deco in Access Point mode you'll get maximum...