Wireguard Gateway offline and high latency

Hi Everyone,

I am trying to enable Wireguard Client on my 4200. I am following this HOW-TO https://protonvpn.com/support/pfsense-wireguard/#interface. I have checked my configuration multiple times and cannot determine what is happening. Wireguard can talk to the service provider (handshake), but somehow, the gateway is offline. I could not see anything on the firewall rules :-/

The weird thing is that the Traffic Graph shows traffic in that interface.