The hardware version is 2.20. When I connect to Wireguard with Full Traffic enabled, I don't have internet access or access to the remote local network.

When I connect with Full Traffic disabled, I can access the internet, but I can't ping the local remote network.

I performed the same tests on another router of the same model, but with hardware version 2.0, and it worked perfectly with the same settings. I believe it might be a firmware issue with the hardware version V2.20.