Option Problems - Lenovo ThinkCentre M83 Hardware Maintenance Manual

Actions:
• Try another cable.
• Ensure that the link partner is set to auto-negotiate.
• Ensure that the switch is 802.3ab-compliant (gigabit over copper).
A wireless LAN problem
Symptom: You cannot connect using the built-in wireless networking card.
Actions:
• Ensure that your wireless LAN driver is the latest version. Check the Web site and verify the driver version
supported by Access Connections is the latest documented in the readme file.
• Ensure that your computer is within range of a wireless access point.
• Ensure 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 wide-area-network card (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/headphone but comes from the local speaker
even though the headset/headphone is connected using Headset profile or AV profile.
Action: Do the following:
1. Exit the application that uses the sound device (for example, Windows Media
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.
Note: Bluetooth is supported only on some computer models.

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 49
• "An option that previously worked does not work now" on page 49
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ThinkCentre M83 and M93/p Hardware Maintenance Manual
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