Lenovo ThinkPad T550, User Manual

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• 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 : I cannot connect to the network using the built-in wireless network card.
Solution : Make sure that:
• Your wireless LAN driver is the latest version.
• Your computer is within range of a wireless access point.
• The wireless radio is enabled.
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.
For the Windows 7 operating system, check the Network Name (SSID) and your encryption information. Use
the Access Connections program to verify this case-sensitive information.
A wireless WAN problem
Problem : A message is displayed indicating that an unauthorized WAN card is installed.
Solution : The WAN card is not supported on this computer. Remove the WAN card.
Note: Some models do not have a wireless WAN card.
Bluetooth problems
Note: Check your connection anytime and make sure that no other Bluetooth-enabled device is searching for
the device to which you want to connect. Simultaneous searching is not allowed in the Bluetooth connection.
• Problem : Sound does not come from the Bluetooth headset/headphones but comes from the local
speaker even though the Bluetooth headset/headphones is connected using a 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 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.
4. Click OK to close the Sound window.
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User Guide