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A–4 Reference Guide
Troubleshooting
External Device Problems
Problem Possible Cause Solution
A new device is not
recognized as part
of the
system.
The computer may be
properly aligned, but is not
fully seated or docked in
the docking station.
Lift the computer away from
the docking station. Then
realign the computer visual
alignment indicator with the
indicator on the docking
station, and reconnect the
computer. Ensure that the
computer is properly aligned
and seated, and fully docked
by gently pressing down on
the computer until you hear a
click. If accessories are
attached, they should now be
recognized by the system.
The device cable or power
cord is loose.
■ Ensure that all cables are
securely connected to the
device and the docking
station.
■ Ensure that all power
cords are securely
connected to the device
or
docking station and
to
an AC outlet.
The device was connected
while the system was on.
Turn off the computer, turn
on the device (if applicable),
and then restart the
computer.
Cabling is incorrect. Ensure that the device cable
is in the correct connector on
the docking station.
You may need to install
device drivers on the
computer.
Install drivers according to
the device manufacturer’s
instructions.