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Chapter 3. Troubleshooting
Other problems
Your computer does not
respond.
•
To turn off your computer, press and hold the power button
for 5 seconds or more. If the computer still does not respond,
remove the AC adapter.
• Your computer might lock when it enters sleep mode
during a communication operation. Disable the sleep timer
when you are working on the network.
The connected external device
does not work.
• Do not connect or disconnect any external device cables
other than USB while the computer power is on. Otherwise,
you might damage your computer.
• When using a high power consumption external devices
such as an external USB optical disk drive, use an external
device power adapter. Otherwise, the device may not be
recognized, or the system may shut down as a result.