[Myaggic]

Hi all, I'm trying to set up a gmod server on a Centos 8 server. It's having a weird issue where only one person is able to join at a time, everyone else is stuck at "Authenticating with steam" until that person leaves.
I've opened up the necessary ports using firewalld, selinux is disabled. I've tried changing ports as well, including the clientport and tv_port, with no success. I've ran a TF2 server on the same machine for the longest time and can have multiple people join without issue, before and after trying to set up this Gmod server. Same problem regardless if the TF2 server is running.
If it's useful, the gmod server seems to try to use 27005 for the clients regardless of what the clientport is set to, eg using +clientport 27006 in the launch script.

Any help is appreciated, thanks.

[Myaggic]

Figured it out, the Game Server Token expired when I switched machines and I had to regenerate it, apparently this will prevent more than one person from joining.