AX6000 - No modem - Internet plugged directly into WAN - No Internet
I have fiber internet, terminated with an rj45 connection. I currently am using old Google Wifi pucks, with the internet cable plugged directly into them. Because that was working, I didn't choose to rent a modem from my ISP. I just bought the AX6000 (AX 80) and tried just plugging that cable into the 2.5 WAN port (2ghz internet) and it's not picking up an internet connection. I ran the basic setup and the network is online, as in I can connect via the Tether app and 192.168.0.1 address and enter settings. Is there something I need to configure on the router to allow it to accept the internet connection, or does this hard require a modem?
Please and thank you for your advice!