A Wireless Lan Problem; Bluetooth Problems - Lenovo ThinkPad X220 4298 User Manual

Lenovo thinkpad x220 4298: user guide
Hide thumbs Also See for ThinkPad X220 4298:
Table of Contents

Advertisement

– 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
through Bluetooth, a PIM item sent from Windows 7 and Windows Vista might be saved as a file with
the extension .contact.
214
User Guide

Hide quick links:

Advertisement

Table of Contents
loading

Table of Contents