Lantronix
x4120 User Guide
33551 Rev. C
Page
57
of
142
Windows XP Forces a Reboot after Installing a Device
This problem can occur if an application is accessing a file while the New Hardware Wizard is trying to
copy it. This usually occurs with the FTD2XX.DLL file.
1. Select not to restart the computer and then unplug and re-plug the device. This may allow the device
to function properly without restarting.
2. Restart the computer to allow the device to work correctly.
3. Contact Lantronix for more information. Contact Technical Support.
Driver Installation Fails and Windows XP Gives Error Code 10
Windows error code 10 indicates a hardware error or failed driver installation. This error may appear if a
device has insufficient power to operate correctly (e.g. plugged into a bus powered hub with other
devices), or may indicate a more serious hardware problem. Also, it may be indicative of USB root hub
drivers being incorrectly installed.
1. Contact Lantronix for more information. Contact Technical Support in the US/Canada at 1-800-260-
1312, or International at 00-1-952-941-7600.
Windows XP Displays an Error and then Terminates Installation
If the following screen is displayed with this message, Windows XP has been configured to block the
installation of any drivers that are not WHQL certified.
To successfully install the device, you must change the driver signing options to either warn or ignore in
order to allow the installation to complete.
1. To change the current driver signing setting, in Windows XP, go to "Control Panel\System", click on
the "Hardware" tab and then click "Driver Signing".
2. Select the desired signing option.
