AX1800 Flint Wireguard Server breaks internet connection

I am trying to install Gl-AX1800 to my home internet to have a home VPN. I did port forwarding and it works connected to home router ethernet. When I Start Wireguard Server it loses internet. I want to connect it to an AX3000 to work remotely.

Please check all settings and follow How to troubleshoot WireGuard