Return
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Title
Error retrieving data: The underlying connection was closed: An unexpected error occurred on a send -
Description
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.
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Resolution
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 -
Defect ID
SoSSE-4832 -
Additional Information
Version 11.5 error