We have 3 app servers running ArcGIS server 10.5.1, all three servers connect to a file server. The config store is on the file server, and that contains all the server and service content.
Intermittently, one of the servers will start error-ing out, not finding the service content, but oddly the ArcGIS Server service will be running on the problem server as well all the ArcSOC.exes.
We have to manually restart the ArcGIS server windows service, and then problem is resolved.
Has anyone encountered these symptoms before? What was the cause? What was the solution? I may have to just uninstall and reinstall ArcGIS server, but the odd thing is this installation has been running since January 2018 without issues until the last few months.