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WU_E_PT_SOAPCLIENT_OUTOFMEMORY
WU_E_PT_SOAPCLIENT_OUTOFMEMORY means the SOAP client ran out of available memory while processing an update-service request. It can be transient, but repeated failures should be correlated with the request size and system resource state.
What to check
- Check system memory pressure and whether the failure coincides with unusually large scans or service responses.
- Compare the request with a successful client using the same WSUS or update service.
- If many clients fail at once, examine server and proxy behavior instead of assuming every client has a local memory issue.
Microsoft: Windows Update log files
Microsoft: WSUS messages and troubleshooting tips
Microsoft: Windows Update error reference
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