Troubleshooting Poor USB Communication
Bad Ports A USB port that works well for a mouse or a printer may not necessarily work well with
your CSSN License Scanner. Your USB CSSN License Scanner devices require the full
bandwidth of a USB port to operate properly. Your computer may feature USB ports that do not
fully meet the USB standard for bandwidth and/or electricity. These are sometimes found on the
front of desktops, and the side opposite the power plug on laptops. This is a common cause of
poor connections and loss of device communication or connection.
1. Exit any programs running on your computer.
2. Disconnect your CSSN License Scanner USB device.
3. Re-connect it to a different USB port on your computer.
4. Re-install the device drivers if required.
USB Hubs External devices which let you connect multiple USB devices to a single port on your
computer are called hubs. Hubs are not recommended for use with full-bandwidth devices such
as the License Scanner. We strongly recommend connecting your License Scanner directly to a
USB port on your computer. If using a desktop PC, use a port on the rear of the computer.
1. Exit any programs running on your computer.
2. Disconnect your CSSN License Scanner USB device.
3. Re-connect it directly to a USB port on your computer.
4. Re-install the device drivers if required
Note: A powered USB Hub may be used, provided that this USB hub has its own AC power cord
and is connected directly to an AC wall outlet and has been properly installed on your computer.
However, USB hubs can and do fail.
USB Extension Cables USB extension cables (which allow one USB cable to be plugged into
another cable, extending it’s reach), are not recommended. These are best reserved for use with
low-bandwidth devices like mice, and are not suited for use with full-bandwidth devices such as
your License Scanner device. Longer USB cables (not extenders, but single cables 10-15ft long)
are available from your local computer retailer, and will work fine. However lengths longer than
15ft are not recommended.
1. Exit any programs running on your computer.
2. Disconnect your CSSN License Scanner USB device.
3. Re-connect it using a single, USB cable (without an extension) directly to a USB port
on your computer.
4. Re-install the device drivers if required.
Bad USB Cable This is not wishful thinking...it really happens. If a cable goes bad, you could get
exactly these symptoms. Try a different cable. Your printer likely uses a USB cable too. You
could borrow this cable to try connecting your License Scanner device using your printer’s USB
cable.
This USB port information applies to the CSSN Snapshell, Scanshell and Scanshell 800 Driver
License Scanners..
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