What does NTSTATUS 0xC00000B3 (STATUS_PIPE_LISTENING) mean?

STATUS_PIPE_LISTENING

The pipe is waiting for a client rather than carrying data

The server instance is listening and has not yet completed a client connection. Diagnose the client connect path and instance selection instead of treating the listening state as data availability.

This status means the server-side pipe instance is in the listening state. Data-transfer operations or client-state assumptions are premature until a client connection is completed.

What to inspect

• Wait for connect completion before reading or writing.
• Check overlapped ConnectNamedPipe completion status.
• Do not diagnose this as remote data loss; no client session is active yet.

References for STATUS_PIPE_LISTENING

• Microsoft Open Specifications: NTSTATUS values
• Microsoft: Named Pipes
• Microsoft: Named Pipe Type, Read, and Wait Modes
• Microsoft: Named Pipe Operations