Hi
I have a openarena server that was using port 27960...it was seen as a quake 3 server, it worked well.
Now my server is getting spammed from various ip:s to that port, and I changed it. I cant use port 33333 with gametracker, why is that?

You will need to make sure that you update the open ports in any firewall/router software you use. When you change the port from one to another, the firewall will not automatically update.