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ERROR_NET_OPEN_FAILED
What this result means
ERROR_NET_OPEN_FAILED is a Windows system result. This unusual result indicates that an underlying native file-open operation failed and the normal status translation did not provide a more specific public error. It can surface through legacy networking, redirector, driver, or compatibility boundaries.
Why it can appear
- a filesystem or network redirector returned an unexpected native status
- a filter driver mishandled create/open completion
- a compatibility layer lost the original NTSTATUS
- the target path disappeared or changed during a race
Troubleshooting steps
- Capture the original NTSTATUS when possible, requested path, create disposition, options, sharing mode, and caller
- Collect SMB, redirector, filesystem, and filter-driver traces
- Compare local and remote paths and test without nonessential filters
- Record whether the failure follows a particular server, protocol dialect, or namespace
Correct recovery and handling
Fix the underlying path, redirector, or driver issue. Applications should preserve the original status and context instead of collapsing future failures into this generic result.
Related and easily confused conditions
Because the code is intentionally nonspecific, the first lower-layer event is more valuable than repeated application retries.
References
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