Err Msg: Error 692: Hardware Failure in Port or
Symptoms: When you dial a Remote Access Services (RAS) server in
Windows NT, you may receive the following error message as the modem starts to
Error 692: Hardware failure in port or attached device.
This behavior can occur if any of the following conditions exists:
- The modem is turned off or malfunctioning.
- If you have an external modem, the serial cable is incorrect.
- If you have an external modem, the serial cable is loose.
- You are using a 9-to-25 pin adapter or a 25-to-9 pin adapter
for the serial connection that is not wired correctly.
- The serial port or multi-port adapter on the RAS server or
client is malfunctioning.
- The handshaking options for the modem need to be adjusted.
- The modem is unsupported, or the chosen emulation may be
To resolve this problem, use the appropriate method:
Contact your modem manufacturer to see if they provide an .Inf file for
your modem for your version of Windows NT. Also, check the latest Windows
NT Hardware Compatibility list (HCL) to ensure that your modem is
- Reset your modem. Consult your hardware documentation for
information about how to reset your modem.
- If you have an external modem, ensure that you are using the
proper serial cable. For more information about requirements for proper
cabling, refer to the "Cabling Requirements" section in Dial-Up Networking
- If you have an external modem, ensure that the serial cable is
- If you are using a pin adapter to connect your external modem
to your serial port, ensure that the pin adapter is wired properly for
modem communication. For example, a 9-to-25 pin adapter for a mouse does
not work properly with a RAS serial setup.
- Test and replace the serial port or multi-port adapter, if
- Ensure that the handshaking options for the modem are
configured properly. Consult your hardware documentation for information
about different handshaking options available for your modem.
Provided by Microsoft