@Danma15
Hey
We would need some more information on how your fibre connection is setup in your house, basically what way your ISP installed it..?
However, generally the setup is as follows
1. You will have a new box installed in your house, it will take the fibre cable coming in and convert it to a network cable. This can be called a ONT
2. Plug the main deco into the network cable on this ONT
3. In the Deco App, go to setting and configure your internet connection as PPPoE
4. It will ask you for the username and password for your internet provider, put this in
You should now be online.