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Chapter 4: Troubleshooting
4. Troubleshooting
4.1 Problems/Solutions
This section provides troubleshooting tips. The topics are arranged in the order in
which they should be executed, in most situations. If you are unable to resolve the
problem after following these instructions, please contact Technical Support for
further assistance.
Problem: The USB device does not operate correctly.
Possible Cause:
• The USB device is malfunctioning.
• The computer does not recognize the USB device.
• The application software for the device is not operating.
• The Extender is malfunctioning.
Solution:
1. Un-install and re-install the driver for the USB device.
2. Update the driver for the USB device.
3. Directly connect the USB device to the Host to verify the USB device operates
correctly.
4. Contact Technical Support.
Problem: The USB device is detected as an “Unknown Device” in the Operating
System.
Possible Cause:
• The USB device’s timing is outside of the USB 1.1 specification.
• The Extender is malfunctioning.
Solution:
1. Connect the Remote Extender to the Local Extender using a patch cable.
2. Unplug the Local Extender from the host and wait 15 seconds. Then plug the
Local Extender back into the host.
3. Contact Technical Support.
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