@David-TP I set Deco System as Access Point. I don't have menu "Replace Main Deco", so I switch Deco units, reset both devices (in a long reset), an again connect both units, to the internet. Problem...

I just bought, a TP-Link Deco x10 2-pack. The master station, is next to the computer, where the network router is, while the slave station, is in a completely different room. When I set it in...