Lenovo 30A0 Hardware Maintenance Manual page 54

Actions:
• Use Category 5 wiring and ensure that the network cable is securely connected.
• Connect to a 1000 BASE-T hub/switch (not 1000 BASE-X).
If your computer is a Gigabit Ethernet model, it cannot connect to the network at 1000 Mbps. Instead,
it connects at 100 Mbps
Symptom: If your computer is a Gigabit Ethernet model, it cannot connect to the network at 1000 Mbps.
Instead, it connects at 100 Mbps.
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 (WAN) card is not supported on this computer. Remove it.
Note: A wireless WAN card is supported only on some computer models.
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
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.
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ThinkStation E32 Hardware Maintenance Manual
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