@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...

@RikHCA What is the Deco M9 Plus firmware version? What are floors made of: concrete, wood? This is what I can suggest for troubleshooting: 1. Switch Deco mesh to Access Point mode and keep it in...

@sibuncis It is not possible to make chain connection with Deco nodes. This is the feature users asked TP-Link to add for a long time, but as of me writing this it is not delivered yet. The first...