# Hung port

A port is considered hung when it refuses to accept keyboard
input and is producing no new terminal output.

In the majority of cases, a hung port occurs due to an x-off signal being sent to the device. It is advisable
to try an x-on before any other remedies.

The reset-async, reset-port, and reset-user commands can be used to clear
some hung port conditions.

The logoff command
is provided to force a hung port to the logon prompt. The last resort
is rebooting the system.

## See also

- [:reset-async command](https://d3codex.com/tcl/colon-reset-async-command/)
- [logoff command](https://d3codex.com/tcl/logoff-command/)
- [logon command](https://d3codex.com/tcl/logon-command/)
- [PIB](https://d3codex.com/definitions/pib/)
- [power-off command](https://d3codex.com/tcl/power-off-command/)
- [reset-port command](https://d3codex.com/tcl/reset-port-command/)
- [reset-user command](https://d3codex.com/tcl/reset-user-command/)

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Source: https://d3codex.com/definitions/hung-port/ - part of the D3Codex reference.