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Solution:
– 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).
• Problem: The Wake On LAN feature is not working.
Solution:
– Ensure that Wake On LAN is enabled in ThinkPad Setup.
– If it has been enabled, check with your LAN administrator for the necessary settings.
• Problem: If your computer is a Gigabit Ethernet model, it cannot connect to the network at 1000 Mbps.
Instead, it connects at 100 Mbps.
Solution:
– 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
Problem: You cannot connect to the network using the built-in wireless network card.
Solution:
• If your system is installed with Windows 7 operating system, ensure that:
– Your wireless LAN driver is the latest version. Check the Web site and conrm that the driver version
supported by the Access Connections program is the latest documented in the readme le.
– Your computer is within range of a wireless access point.
– The wireless radio is enabled by double-clicking the Access Connections icon on the taskbar.
Check the Network Name (SSID) and your encryption information. Use the Access Connections program
to verify this case-sensitive information.
• If your system is installed with Windows 8 operating system, ensure that:
– Your wireless LAN driver is the latest version.
– Your computer is within range of a wireless access point.
– The wireless radio is enabled.
– The Airplane mode is off.
Bluetooth problems
• Problem: Sound does not come from the Bluetooth headset/headphone but comes from the local
speaker even though the Bluetooth headset/headphone is connected using a Headset prole or AV prole.
Solution: Do the following:
1. Exit the application that uses the sound device (for example, Windows Media Player).
2. Open Control Panel. Click Hardware and Sound ➙ Sound ➙ Playback.
3. If you are using a Headset prole, select Bluetooth Hands-free Audio and click the Set Default
button. If you are using an AV prole, select Stereo Audio and click the Set Default button.
4. Click OK to close the Sound window.
Chapter 9. Troubleshooting computer problems 103