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STATUS_PORT_CONNECTION_REFUSED
The target port rejected NtConnectPort
The peer refused a native port connection request. Inspect the server port, connection message, and acceptance logic; TCP listener state is unrelated to this NT port result.
This indicates a refusal at the NT port connection boundary. The target port object was reached, but the server side rejected or could not accept the connection request.
What to inspect
- Check whether the server port is accepting clients.
- Verify security descriptor and connection data expected by the port server.
- Separate this from transport-level STATUS_CONNECTION_REFUSED.
References for STATUS_PORT_CONNECTION_REFUSED
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