ANSWERED AirVPN on Wireguard on Proxmox LXC cannot connect outside of network

[Keeble 0]

Hello!
I've been using AirVPN for a pretty long time on a Proxmox LXC with Wireguard that runs my qBittorrent. It's been working fantastic until suddenly it can no longer make outbound connections. Pinging 1.1.1.1 comes up with nothing, and I cannot ping www.google.com either. Only thing I can ping are connections inside my network. I'm honestly unsure what would've possibly caused this as I've changed nothing about my system except for updating it, but thats it. The only thing I notice is a message when doing "wg-quick up wg0" is "/etc/resolvconf/update.d/libc: Warning: /etc/resolv.conf is not a symbolic link to /run/resolvconf/resolv.conf", but when I do "ln -sf /run/resolvconf/resolv.conf /etc/resolv.conf" I get "Temporary failure in name resolution: `us3.vpn.airdns.org:1637'. Trying again in 1.00 seconds..." with the time slowly increasing. 

I added some photos below to hopefully allow people to get a better idea on whats going on. Any help is appriciated cause honestly I have no idea where to go with this, its a major head scratcher and I'm unsure on where to even begin. If it helps I also do have tailscale setup on this as well, but it's been working fine for the longest time so I can't see that affecting anything. All connections work fine with the wireguard vpn down as well. Thank you!

[Staff 10617]

Hello!

The first main problem to resolve is setting a proper DNS that the container can query before the connection is established. Your system can't resolve the domain name of the end point (us3.vpn.airdns.org), so WireGuard does not even try to establish a VPN connection. Note how the service wg-quick@wg0.service exited because of that (temporary failure in name resolution).

Please don't send screenshots whenever text is possible and suitable.

Kind regards