I have been running a server at my home for over 2 months now, I have had no connection issues prior to today, however I hadn't played in two days so 5/9 is last known good connection. The server is running on a dedicated windows machine; port forward was setup correctly and the host machine given a static ip. The only changes since last working connection are the update from 1.20.09 to 1.20.10 and my ISP changed my ip from a 10. to a 108.
I use ddns to update my connection address for the players, neither ddns address ore manually entered address allows connection. If I connect to the server via my local ip, but different machine, the connection goes through. Same computer via public ip gives refuse to connect, all remote players also get this message.
If anyone knows why this is happening or how to fix it, please let me know. I will be putting my remote players on a wireguard tunnel in the meantime and will update here if that allows connection a temporary fix/more info tomorrow night. If any other info is needed, please also let me know, as far as I can tell everything is configured exactly as outlined for a windows server and the two changes doesn't explain why or how the once good config no longer is. There are no logs server side from the failed connections to give, the 'refused' connections never appear in the terminal.
Thank you so much for anyone's time or help!