Disclaimer: I’m just a fellow Roon user that tries to help others. I use Cockpit, Webmin and WinSCP to administrate my headless CentOS 7 based Roon server so please don’t expect me to provide you with terminal commands.
This is not very helpful. You might want to have a look into your system logs and into the Roon logs as well. From the installation guide:
Log File Location.
If you used the easy installer , log files can be found in /var/roon/RoonServer/Logs , /var/roon/RAATServer/Logs , and /var/roon/RoonBridge/Logs .
Out of my memory I would suspect that the Roon server process has insufficient SELinux rights.
Update: Should you manage to get your Roon server running you might also have to setup appropriate firewall rules to be able to connect to it with your Roon Remotes.