• Make sure that the wireless radio is enabled by double-clicking the Access Connections icon in the
Windows notification area.
• Check Network Name (SSID), and your encryption information. Use Access Connections to verify this
case-sensitive information.
A wireless WAN problem
Message: Unauthorized WAN card is plugged in - Power off and remove the WAN card.
Action: The WAN card is not supported on this computer. Remove it.
Note:
Some computer models do not have a wireless WAN.
Bluetooth problem
Symptom: Sound does not come from the Bluetooth headset or headphone but comes from the local
speaker even though the headset or headphone is connected using the Headset profile or AV profile.
Action: Do the following:
1. Exit the application that uses the sound device (for example, Windows Media Player).
2. Open Control Panel.
3. Click
Hardware and Sound
➙
Sound
.
4. Select the
Playback
tab.
5. If you are using the Headset profile, select
Bluetooth Hands-free Audio
and click the
Set Default
button. If you are using the AV profile, select
Stereo Audio
and click the
Set Default
button.
6. Click
OK
to close the Sound window.
Option problems
Use this information to diagnose problems with Lenovo hardware options that do not have their own
troubleshooting information.
Select your symptom from the following list:
•
“An option that was just installed does not work” on page 103
•
“An option that previously worked does not work now” on page 104
An option that was just installed does not work
Symptom: An option that was just installed does not work.
Action: Verify that:
• The option is designed for your computer.
• You followed the installation instructions supplied with the option and the installation instructions provided
with your computer, and all option files (such as device drivers, if required) are installed correctly.
• You have not loosened other installed options or cables.
• If the option is an adapter, you have provided enough hardware resources for the adapter to function
correctly. See the documentation supplied with the adapter (as well as the documentation for any other
installed adapters) to determine the resources required for each adapter.
If these actions do not correct the problem, run the diagnostic programs (see “Diagnostic programs” on
page 108 for instructions). If you need technical assistance, see Chapter 11 “Getting information, help, and
service” on page 111.
Chapter 10
.
Troubleshooting and diagnostics
103
Summary of Contents for ThinkCentre 3493
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