@SimonGA I can make WiFi technology roadmap simple for you: newer WiFi systems provide faster WiFi speeds on shorter distances. Also, the newer WiFi system is, the more sensitive to obstacles, such...

@Dammers You are not connecting Main P9 directly to your ISP. You do connect it to LAN port of your Technicolor TG589 router. As such, it must be configured like any device connected to that router....

@Dammers Did you get your set of P9 from your ISP, and they are preconfigured? Because, if you bought them elsewhere, I wonder which Support (ISP, TP-Link) told you about PPPoE? I am going to assume...

@SimonGA Any Deco node you place in the garage will suffer from the same problem of weak WiFi signal between garage and house. To fix "the garage problem" you need to look for different solutions....

@Dammers Your initial assumption is correct. You should connect Deco P9 main unit to available LAN port of your router, using Ethernet cable that came with Deco set, and do the initial setup of Deco.

@Caspi Caspi wrote For technical reasons (house infrastructure) the fiber modem is located at the baby's room. And quite close the her bed. One deco must be conected to the modem. but i want to turn...