Monitor 2024.1.1 is configured with multi-machine enterprise 11.3 deployments. Portal/Datastore components working normally, except GIS server (single machine site and federated server).
1. Not displaying server address / start time or license expiry
2. Only one metrics (connectivity) is shown (where as there are 15 for another identical deployment where monitor works as expected)
3. Only ArcGIS Server logs working under Observers, while Inventory and Metrics are not showing any connection / log details. GIS Server logs are coming through
4. Under Monitor Server logs, the following is shown:

5. Usage reports can be seen via Server admin rest API and displays usage report (required and managed by ArcGIS Monitor to assist with ArcGIS Server metric collection), there are over 14427 service items listed in this report.
Any suggestions @DerekLaw ?
Thomas