I understand you are facing issues with the SSL Certificate in the ArcGIS Monitor 2023.0.
Here are some steps you can try to troubleshoot and resolve the problem:
First need to ensure that the SSL Certificate is correctly configured in the Monitor Admin panel. Verify that the paths and settings are accurate, and the certificate is valid.
Now a server hangup can occur due to various reasons, including misconfigurations. Review the server hangup causes, effects, and solutions to identify potential issues.
However, If you're trying to set up a rewrite rule, double-check the syntax and configuration. Make sure the rule is correctly redirecting traffic from name.dnsname.nl/Arcgis to name.dnsname.com:30443/Arcgis.
Next is to verify that the SSL certificate is correctly bound to port 443. Check if there are any conflicts or issues with port binding that might be causing the server to hang.
I hope these steps help resolve the SSL Certificate implementation issue with your ArcGIS Monitor. If you need further assistance, feel free to ask.