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STATUS_CONNECTION_DISCONNECTED
The transport connection is already disconnected
These statuses describe transport endpoint and connection state. For STATUS_CONNECTION_DISCONNECTED, they can appear below higher-level file sharing, DFS, redirector, RPC, or networking code before the error is translated to Win32 or Winsock form.
The connection object no longer represents an active data path. Higher-level code should treat subsequent I/O as occurring after disconnect, not as an initial connect failure.
For STATUS_CONNECTION_DISCONNECTED, for diagnostics, capture the endpoint address, address family, connection object, local and remote close/reset events, timeout, route, ICMP condition when available, and the higher-level component that issued the transport request.
What to inspect
- Check who initiated the disconnect.
- Stop sending new I/O after disconnect notification.
- Correlate with redirector, DFS, or RPC retry behavior.
References for STATUS_CONNECTION_DISCONNECTED
- Microsoft Open Specifications: NTSTATUS values
- Microsoft: Windows Sockets error codes
- Microsoft Open Specifications: DFS client product behavior
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