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STATUS_BAD_REMOTE_ADAPTER
The remote adapter is incompatible with the requested legacy operation
This status belongs to older redirector and NetBIOS networking paths in which both endpoints exposed adapter-specific capabilities. The remote endpoint was reachable, but its adapter or protocol behavior could not satisfy the requested operation.
Preserve the negotiated transport, remote platform, and command that failed. The problem is different from an unreachable host: retrying the same request over the same incompatible path is unlikely to help. A supported SMB dialect or modern transport may avoid the obsolete adapter contract entirely.
What to inspect
- Record the remote platform, transport, and command being negotiated.
- Compare adapter and protocol capabilities on both endpoints.
- Prefer a supported SMB transport instead of weakening current security settings.
References
- Microsoft Open Specifications: WKSTA_TRANSPORT_INFO_0
- Microsoft Open Specifications: SMB error classes and codes
- Microsoft: SMBv1 is not installed by default
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