LAN ports on XB7 don't work

Hi,

I'm new to the forum. Just moved and had xfinity installed less than 2 weeks ago.

They gave me the XB7 and wifi has been working, although it's slow sometimes (frustrating, especially if you run the check in the app it just tells you it works well).

I want to connect a few devices via LAN and tried it, but non of the ports work. Tried rebooting the gateway, going back to factory settings, just connecting one device, etc. Nothing helps. I see more complaints on the forum and basically tried all suggestions that I could find, but without any luck.

Logged into the gateway and it says all ports are inactive. That doesn't change whether you connect a computer to it or not.

How do I get the LAN ports to work?