Lenovo ThinkPad T420 (English) User Guide - Page 229

A wireless LAN problem, problems - wireless button

Page 229 highlights

Solution: - Make sure that WOL 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 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, to display the Access Connections status icon and the wireless status icon in the system tray, refer to the Access Connections on-line help. 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. Bluetoothproblems 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. Solution: Windows 7 and Windows Vista send PIM items in XML format, but most Bluetooth-enabled devices handle PIM items in vCard format. If another Bluetooth-enabled device can receive a file Chapter 10. Troubleshooting computer problems 211

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Solution
:
Make sure that WOL 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 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, to display the Access Connections status icon and the
wireless status icon in the system tray, refer to the Access Connections on-line help.
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.
Solution
: Windows 7 and Windows Vista send PIM items in XML format, but most
Bluetooth
-enabled
devices handle PIM items in vCard format. If another
Bluetooth
-enabled device can receive a file
Chapter 10
.
Troubleshooting computer problems
211