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STATUS_NETWORK_UNREACHABLE
STATUS_NETWORK_UNREACHABLE is a transport-routing result. It means the remote network cannot be reached by the transport chosen for the operation. The client has not reached a share-level decision, so share names and permissions are not the first place to investigate.
How to narrow it down
Capture the resolved destination address, the active interface, route selection, VPN or proxy state and firewall/NAT behavior. A server can be healthy while a particular client network has no route to the server subnet. Likewise, a route can exist but select an interface that cannot carry the required SMB traffic.
Keep this distinct from STATUS_BAD_NETWORK_PATH. The latter is about locating the named network path; this status is about the transport's ability to reach the remote network.
Evidence that matters
- Record the destination address and route chosen by the client at failure time.
- Test from a different network only to isolate the route, not to mask a production design issue.
- Verify VPN, segmentation and firewall policy for the specific transport path.
References
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