Same problem as Steve
Have all my ports forwarded, used https://check-host.net/check-udp to them. Server start perfectly with no errors, but for the life of me it wont show up.
*edit* I noticed in my resource manager the ports were listening on UDP and I only had TCP forwarded, so I opted for redundancy and did both in and out. And so as my resource monitor pointed out. I only get a reply on UDP. Does any1 know if this is correct ?