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RPC_NT_CALL_FAILED_DNE
RPC_NT_CALL_FAILED_DNE is an NTSTATUS value used by the Windows RPC runtime. This status means the RPC call failed but execution on the server did not start. The server was reachable at some point, yet the failure occurred before the requested procedure began running. That makes it materially different from an ambiguous post-dispatch failure.
Compare it with RPC_NT_CALL_FAILED, where the server procedure may have started and side effects may need reconciliation. It also differs from RPC_NT_SERVER_UNAVAILABLE, which does not provide the same reachability/execution boundary.
The call failed before the server began executing the procedure
- Capture bind, authentication and dispatch diagnostics on both sides to locate the failure before procedure entry.
- Use the status as evidence for retry eligibility only after considering application-level ordering and duplicate-delivery rules.
- Keep a distinct metric for failures before dispatch versus failures after possible procedure execution.
References
- Microsoft: RPC return values
- Microsoft Open Specifications: MS-RPCE
- The Open Group: DCE 1.1 RPC specification
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