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ERROR_CTX_CANNOT_MAKE_EVENTLOG_ENTRY
ERROR_CTX_CANNOT_MAKE_EVENTLOG_ENTRY means the session subsystem could not create the registry information required to log events for the session. The underlying cause is commonly a registry write failure, a damaged event-log registration, or an installation problem.
What to check
- Review the System log for Access Denied, registry, or event-log errors at the same time.
- Check whether the server was recently restored, hardened, or modified by endpoint-management or security software.
- Fix the underlying Windows/RDS component issue rather than suppressing event logging; the lost event can hide the actual connection failure.
Microsoft: Remote Desktop Services system error codes
Microsoft: Troubleshoot Remote Desktop disconnected errors
Microsoft: Remote Desktop Services overview
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