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Solution:
– Use Category 5 wiring and make sure 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:
– Make sure that Wake on LAN is enabled in ThinkPad Setup.
– If it is, 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.
– Make sure that the link partner is set to auto-negotiate.
– Make sure 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 computer is installed with Windows 7 operating system, ensure that:
– Your wireless LAN driver is the latest version. Check the Web site and confirm that the driver version
supported by the Access Connections program is the latest documented in the readme file.
– 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.
Note: If you are using the Windows 7 operating system, click Show hidden icons on the taskbar.
The Access Connections icon is displayed. For more information about the icon, refer to the Access
Connections help information system.
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 profile or AV profile.
Solution: Do the following:
1. Exit the program that uses the sound device (for example, Windows Media Player).
2. Go to Control Panel and click Hardware and Sound ➙ Sound ➙ Playback.
3. If you are using a Headset profile, select Bluetooth Hands-free Audio and click the Set Default
button. If you are using an AV profile, select Stereo Audio and click the Set Default button.
.
Chapter 9
Troubleshooting computer problems
119
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