03-13-2012, 06:00 PM
If you are on windows, go into the commandline (Win+R, "cmd", enter) and run this command: "netstat -na" (without the quotes). It will show you all TCP and UDP ports used on your computer. MCServer uses TCP port 25565 by default, so if it is already taken, it can't use that port.
You can specify a different port in the settings.ini, then MCS will happily use whatever number port you give it, as long as it's free. You'll need to add that port number to the server name when connecting to it with a client, though (so instead of connecting to "myserver", you'll be connecting to "myserver:25564")
You can specify a different port in the settings.ini, then MCS will happily use whatever number port you give it, as long as it's free. You'll need to add that port number to the server name when connecting to it with a client, though (so instead of connecting to "myserver", you'll be connecting to "myserver:25564")