Unable to interact with Checkmk web UI from a remote browser

Hi everyone,

I am new to Checkmk and I have recently installed version 2.3.0p47.cre (Raw edition) on Rocky Linux 8.8. The installation is on the head node of a cluster that I would like to monitor.

I am experiencing a strange issue:

  • Local connection: If I connect locally (from the node where Checkmk is installed), everything works perfectly. I can interact with the dashboard, add nodes, and configure settings.

  • Remote connection: If I connect from a remote PC outside the cluster, the dashboard loads visually in the browser, but I cannot interact with it at all (buttons/links are unresponsive).

I have checked the Checkmk log files, but I couldn’t find any error messages.

Could someone help me figure out what might be causing this?

Thanks in advance for your help,

Fedele Stabile