I'm trying to set up GMLive on a Windows PC, GM v 2024.2.0.

When running gmlive-server.exe I'm getting this error message

Project load took 674ms

Failed to start server on port 5100:

std@socket_bind (usually means that port is taken)

You can enter a different port

(note: don't forget to change it in your live_init call too!)

or press Enter to exit.

Port?:

Can you help me how to proceed with this? I have no clue what's using this port or if I can just add any number

This has been answered on Discord, and for anyone else:

You can use any port between 1000 and 65000 - so long as you enter the new port in obj_gmlive’s Create event too.

The default port isn’t a commonly used one so “port is taken” most often means that there’s another gmlive-server already running.