| Previous | Next |
| ERROR_DEVICE_ALREADY_REMEMBERED | ERROR_BAD_PROVIDER |
ERROR_NO_NET_OR_BAD_PATH
This code sits at the intersection of path syntax and provider availability. Windows can have multiple UNC/network providers, and MUP/MPR determine which provider owns a resource. A correctly spelled path can still fail when its provider is not running or cannot claim the prefix; conversely, a healthy provider cannot resolve a nonexistent share.
Avoid testing only basic IP reachability. Resolve the exact UNC prefix, identify the provider expected to handle it, and compare with another known resource on that provider. For SMB, then determine whether failure occurs before or during TREE_CONNECT.
Separate path from provider failure
- Preserve the exact remote name and provider field passed by the caller.
- Check whether an installed/running provider claims the resource prefix.
- Test a known-good resource through the same provider.
- For SMB paths, verify server and share components separately.
Windows MUP and UNC prefix resolution · WNetGetResourceInformation · WNetGetNetworkInformation · MS-SMB2 TREE_CONNECT
Looking for a different code? Search another status or error code.