The alarm will clear automatically if the error is due to the service being down or network problems and the error condition goes away.
Check the Hyper-V address and account authentication details have been entered correctly
Use the Spotlight Cloud Diagnostic Server application. The Spotlight Cloud Diagnostic Server application is installed on a Windows server (on-premise or in the cloud) with access to your SQL Server environment.
Double click the Spotlight Cloud Diagnostic Server application desktop icon.
Sign in using your Quest account.
From the configure menu select Connections.
Double click on the connection to check connection details.
Hyper-V server address
Check the address is a valid IP address or hostname of the Hyper-V server.
Authentication
When Use Diagnostic Server credentials is selected then the Windows server account running the Spotlight Cloud Diagnostic Server (as a Windows service) is used to connect to the Hyper-V server. Ensure the Windows user running the Spotlight Cloud Diagnostic Server can access the Hyper-V server.
If you select to fill in the user and password fields, verify the user has the privileges required to retrieve server information and access WMI.
Hyper-V Server availability
Verify the Hyper-V server is available and accessible over the network.
Hyper-V server connection requirements
Verify the Hyper-V Server fulfills the requirements of Spotlight Cloud.
TCP port 135
Verify TCP port 135 is open.