| Previous | Next |
| RPC_NT_CALL_FAILED_DNE | RPC_NT_UNSUPPORTED_TRANS_SYN |
RPC_NT_PROTOCOL_ERROR
RPC_NT_PROTOCOL_ERROR is an NTSTATUS value used by the Windows RPC runtime. This status means the RPC runtime detected a protocol-level error. The binding may be syntactically valid and the endpoint may be reachable, but the protocol exchange, message processing or negotiation did not satisfy RPC requirements.
It differs from RPC_NT_UNSUPPORTED_TRANS_SYN, which identifies a specific inability to use the proposed transfer syntax. It also differs from RPC_NT_BAD_STUB_DATA, which concerns data seen by a stub after the runtime has advanced further into unmarshalling.
The failure is in RPC protocol processing rather than application procedure logic
- Capture the negotiated protocol sequence, interface UUID, transfer syntax and RPC extended-error records from both endpoints.
- Check version and intermediary compatibility, especially where proxies or non-Windows implementations participate.
- Do not classify it as an application exception until protocol and stub diagnostics rule out runtime-level failure.
References
- Microsoft: RPC return values
- Microsoft Open Specifications: MS-RPCE
- The Open Group: DCE 1.1 RPC specification
Looking for a different code? Search another status or error code.