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WU_E_PT_HTTP_STATUS_SERVER_ERROR
WU_E_PT_HTTP_STATUS_SERVER_ERROR maps to HTTP 500: the server could not fulfill the request because of an internal error. This is server-side evidence, so inspect the WSUS, IIS, application, and database logs before repairing clients.
What to check
- Determine whether multiple clients receive HTTP 500 at the same time.
- Inspect server logs for the request, exception, configuration change, or resource exhaustion.
- Retry after the service-side cause is fixed; retain the request timestamp and affected endpoint.
Microsoft: WUA networking error codes
Microsoft: troubleshoot WSUS connection failures
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