ERROR_PORT_UNREACHABLE 0x800704D2

Error code 1234 · HRESULT 0x800704D2

WINDOWS

No service is operating at the destination network endpoint on the remote system.

Windows troubleshooting diagram: Device Manager warning and a system file scan
Windows errors: check drivers, system files and Event Viewer, in that order.

What it means

ERROR_PORT_UNREACHABLE is a Windows error code (system error 1234, returned as HRESULT 0x800704D2) reported by Windows. Its official message is: “No service is operating at the destination network endpoint on the remote system.”

How to fix ERROR_PORT_UNREACHABLE

  1. Reboot once — many one-off system codes disappear with a clean restart
  2. Repair system files: 'sfc /scannow' then 'DISM /Online /Cleanup-Image /RestoreHealth'
  3. Find the source in Event Viewer → System: filter for this exact code and open its provider link

Related errors

ERROR_PORT_NOT_SETERROR_PORT_MESSAGE_TOO_LONGERROR_NETWORK_UNREACHABLEERROR_PROTOCOL_UNREACHABLEERROR_REQUEST_ABORTEDERROR_NOT_READYERROR_CRCERROR_GEN_FAILURE

Source: Microsoft WinError.h

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