Same here for me. My server lost access to the internet for ~3 months when I suddenly lost connection after a reboot. I was helpless until I accidentally came across this thread. I checked to see if I had WireGuard in the config files, and there it was. I deleted the Wiregurad directory, and it is now back to life.
I did not delete the DynamiX directories, though. I should add that I was getting sidetracked while trying to solve the "Interface Ethernet Port 0 is down. Check cable!" (hope someone sees this when searching)" issue when the culprit was WireGuard all along. Funnily enough, I don't even use WireGuard. It looks like I tried to use WireGurad in the beginning and reverted to OpenVPN and forgot I had WireGuard in there.