NTSTATUS 0xC0020016 (RPC_NT_OUT_OF

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the RPC runtime does not have sufficient resources to complete the requested operation.

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RPC_NT_CANT_CREATE_ENDPOINT	RPC_NT_SERVER_UNAVAILABLE

RPC_NT_OUT_OF_RESOURCES

RPC_NT_OUT_OF_RESOURCES is an NTSTATUS value used by the Windows RPC runtime. This is a resource-exhaustion status from the RPC runtime. It does not identify a malformed binding, missing interface or rejected authentication policy. The exhausted resource can be runtime memory, endpoint/listener capacity, thread-related state or another resource required by the specific operation.

It differs from RPC_NT_SERVER_TOO_BUSY, which is an observed server-capacity condition for a call, and from RPC_NT_CANT_CREATE_ENDPOINT, which is specifically about endpoint creation. Preserve the operation that returned the status before assigning a cause.

The RPC runtime failed because required local resources were unavailable

Capture process memory, handle counts, listener registrations and concurrent RPC workload at the same timestamp as the failure.
Record the exact RPC API that returned the status; resource meaning depends on whether the runtime was binding, registering or executing a call.
Avoid replacing the error with unconditional retries, which can increase pressure on an already exhausted runtime.

References

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