Performance Health
Error retrieving data: The underlying connection was closed: An unexpected error occurred on a send.
Workload Analysis
Error retrieving data: The underlying connection was closed: An unexpected error occurred on a send.
WORKAROUND:
Check firewall as it is most likely blocking access to the Diagnostic Server. Port 40403 needs to be open for incoming traffic on the Diagnostic Server host.
STATUS:
Issue fixed in version 11.5. The latest version of Spotlight on SQL Server Enterprise can be downloaded here
