A Wireless Lan Problem; Bluetooth Problems - Lenovo ThinkPad T520 User Manual

Solution:
– Make sure that WOL is enabled in the 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 using the built-in wireless networking card.
Solution: Make sure that your wireless LAN driver is the latest version installed. Check the Web site and
confirm the driver version supported by Access Connections is the latest documented in the README file.
Make sure that your computer is within range of a wireless access point.
Make sure that the wireless radio is enabled by double-clicking the Access Connections icon in the
task bar.
Note: If your computer is a Windows 7 model, click Show hidden icons in the task bar. The Access
Connections icon is displayed. For more information about the icon, see the help information system of
Access Connections.
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.
Solution: The WAN card is not supported on this computer. Remove it.
Note: Depending on your computer, some models do not have a wireless WAN.

Bluetooth problems

For Windows 7 and Windows Vista
• Problem: 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.
Solution: Do the following:
1. Exit the application that uses the sound device (for example, Windows Media Player).
2. Open the Control Panel by clicking Start ➙ Control Panel.
3. Click Hardware and Sound ➙ Sound.
4. Select the Playback tab.
5. If you are using Headset profile, select Bluetooth Hands-free Audio and click the Set Default
button. If you are using AV profile, select Stereo Audio and click the Set Default button.
6. Click OK to close the Sound window.
• Problem: PIM (Personal Information Manager) items sent from Windows 7 and Windows Vista cannot be
received correctly into the address book of any other Bluetooth-enabled device.
.
Chapter 10 Troubleshooting computer problems
237