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Troubleshooting
Does your computer meet the requirements of the USB specification?
Operation may be unstable if your computer does not meet the electrical requirements of the USB
specification.
In this case, you may be able to solve the problem by connecting a self-powered USB hub (a USB
hub that has an internal power supply or an AC adaptor).
Could you have connected the UA-25EX to a different USB connector than the one you used when
installing the driver?
If your computer or USB hub has two or more USB connectors, connecting the UA-25EX to a
different USB connector may cause your computer to ask for the driver file even though the driver
has already been installed.
This behavior does not indicate a malfunction.
Install the driver as described in step 8 of “Installing the driver” (p. 21).
Could you have connected the UA-25EX to a different USB port?
If you connect the UA-25EX to a different USB port, some operating systems may automatically add
a number to the beginning of the device name, but this should not be a problem when using the
UA25EX. If you want to return to the device name that does not have this number, you can either
connect the UA-25EX to the same USB port as when you installed it, or install the driver once again.
➝ “Reinstalling the driver” (p. 40)
“Found New Hardware Wizard” appears even though you’ve installed the driver
(Windows XP)
A number such as “2-” appears at the beginning of the device name
(Windows Vista)
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