USB virtual desktop (model U170) user guide
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3. Click the checkbox to “enable”
The “Running Program” fields can be used to designate a single application to be displayed
without the underlying windowing system. This may be used for kiosk or digital signage
applications.
Troubleshooting guide No graphics are displayed of a U170 station
If there is nothing being displayed on a U170 station check the following:
1. Is the blue light on the U 170 on? If not, the device has not yet been enum erated to the
PC. This could take up to 10-20 seconds if this is the first time connecting.
2. If the blue light is not on check to make sure the unit is plugged in to a USB 2.0 port. If
connecting to a hub, make sure the hub is powered.
3. If the display is “gray” it is possible that you have not registered the device and it is timed
out. Run the registration wizard.
PC will not boot after attaching U170 virtual desktop
Some older PCs have difficulty with USB 2.0 composite devices. There are two potential ways
to solve 1) attach the U170 after booting, 2) try a separate USB PCI c ard 3) disable legacy USB
support in the BIOS.
U170 will not register
Run the registration wizard, when the system scans and lists all of the connected U170 devices
make sure the serial number of each device is displayed. If not, try unplugging and re-plugging
the U170 device, wait for enumeration and press refresh. In some rare cases, it may be
necessary to unplug the display connected to the U170 when registering devices.
Sound does not play
We setting up multiple U170 for the first time there are MANY items for the PC to discover and
the host may not enumerate all devices correctly the first time. Therefore a double reboot is
advised to ensure all devices are enumerate properly (needed only after new devices are
added).
Extended boot time to the OS
When multiple U170’s are connected to the host the normal boot time will be extended some for
each unit added. Remember the OS and PC is supporting that many more users.
For more troubleshooting information visit the NComputing knowledge base in the
support section of the NComputing website at www.ncomputing.com