I'm new Openwrt user, not very familiar yet with it, sorry for my basic questions ...
I've been able to install Wireguard following https://mullvad.net/fr/guides/running-wireguard-router/ instructions. I'm interested with VPN performance using a quite old router (e4200), it works fine (Mullvad server).
My point I thatI don't know how to come back to the default Lan/Wan config when I stop Wireguard interface. Once I stop Wireguard Interface, I'm not able to access anymore to Internet. I tried to modify Firewall zones (see below my Wireguard config), by adding Wan in Lan zone forwarding without success.
Thanks for your help