Lenovo ThinkCentre M92 Hardware Maintenance Manual (HMM) (May 2012) - ThinkCen - Page 58

A wireless LAN problem, Access Connections.

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The adapter stops working for no apparent reason Symptom: The adapter stops working for no apparent reason. Action: The network driver files may be corrupt or missing. Update the driver by referring to the "Solution" description for the procedure to make sure that the correct device driver is installed. The Wake on LAN feature is not working Symptom: The Wake on LAN (WOL) feature is not working. Actions: • Make sure that WOL is enabled in the BIOS Setup Utility program. • If it is, check with your LAN administrator for the necessary settings. If your computer is a Gigabit Ethernet model and you use a speed of 1000 Mbps, the connection fails or errors occur Symptom: If your computer is a Gigabit Ethernet model and you use a speed of 1000 Mbps, the connection fails or errors occur. Actions: • 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). If your computer is a Gigabit Ethernet model, it cannot connect to the network at 1000 Mbps. Instead, it connects at 100 Mbps Symptom: If your computer is a Gigabit Ethernet model, it cannot connect to the network at 1000 Mbps. Instead, it connects at 100 Mbps. Actions: • 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 Symptom: You cannot connect using the built-in wireless networking card. Actions: • Make sure that your wireless LAN driver is the latest version. Check the Web site and verify 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 Windows notification area. Note: On the Windows 7 operating system, click Show hidden icons in the Windows notification area. The Access Connections icon is displayed. For more information about the icon, see the Help in Access Connections. • Check Network Name (SSID), and your encryption information. Use Access Connections to verify this case-sensitive information. 52 ThinkCentre Hardware Maintenance Manual

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The adapter stops working for no apparent reason
Symptom: The adapter stops working for no apparent reason.
Action: The network driver files may be corrupt or missing. Update the driver by referring to the “Solution”
description for the procedure to make sure that the correct device driver is installed.
The Wake on LAN feature is not working
Symptom: The Wake on LAN (WOL) feature is not working.
Actions:
•
Make sure that WOL is enabled in the BIOS Setup Utility program.
•
If it is, check with your LAN administrator for the necessary settings.
If your computer is a Gigabit Ethernet model and you use a speed of 1000 Mbps, the connection
fails or errors occur
Symptom: If your computer is a Gigabit Ethernet model and you use a speed of 1000 Mbps, the connection
fails or errors occur.
Actions:
•
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).
If your computer is a Gigabit Ethernet model, it cannot connect to the network at 1000 Mbps. Instead,
it connects at 100 Mbps
Symptom: If your computer is a Gigabit Ethernet model, it cannot connect to the network at 1000 Mbps.
Instead, it connects at 100 Mbps.
Actions:
•
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
Symptom: You cannot connect using the built-in wireless networking card.
Actions:
•
Make sure that your wireless LAN driver is the latest version. Check the Web site and verify 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
Windows notification area.
Note:
On the Windows 7 operating system, click
Show hidden icons
in the Windows notification
area. The Access Connections icon is displayed. For more information about the icon, see the Help in
Access Connections.
•
Check Network Name (SSID), and your encryption information. Use Access Connections to verify this
case-sensitive information.
52
ThinkCentre Hardware Maintenance Manual