I am having this problem myself... I launch the RageMP Multiplayer server on a Windows Server 2022 machine. Using netstat, I can see that it is listening for TCP on port 22006 and UDP on port 22005, however, I am unable to connect to the server using port 22005.
I have tried many things, and it just will not accept connections on port 22005. All my firewall rules are wide open. No A/V software is running.
I'm out of ideas and hoping someone might have a suggestion for me?