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| RPC_NT_NAME_SERVICE_UNAVAILABLE | RPC_NT_CANNOT_SUPPORT |
RPC_NT_INVALID_NAF_ID
The selected network address family is not valid for RPC
The network address family controls how addresses are interpreted for the protocol sequence and binding. This status means the family identifier cannot be used by the RPC runtime.
It is typically a configuration or binding-construction problem. Check the protocol sequence, address-family constants, and any translation layer that builds string bindings from user input.
What to inspect
- Log the protocol sequence and network address family together.
- Verify the address format matches the protocol sequence.
- Do not treat this as remote server refusal; the local binding data is invalid first.
References
- Microsoft: Specifying RPC endpoints
- Microsoft Open Specifications: MS-RPCE
- Microsoft Open Specifications: NTSTATUS values
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