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.
A wireless WAN problem
Message: Unauthorized WAN card is plugged in - Power off and remove the WAN card.
Action: The WAN card is not supported on this computer. Remove it.
Note:
Some computer models do not have a wireless WAN.
Chapter 5
.
Troubleshooting and diagnostics
47
Summary of Contents for ThinkCentre Edge 3484
Page 1: ...ThinkCentre Hardware Maintenance Manual Machine Types 3484 3485 3492 3493 3496 and 3497 ...
Page 6: ...2 ThinkCentre Hardware Maintenance Manual ...
Page 13: ...Chapter 2 Safety information 9 ...
Page 17: ...Chapter 2 Safety information 13 ...
Page 18: ...1 2 14 ThinkCentre Hardware Maintenance Manual ...
Page 19: ...1 2 Chapter 2 Safety information 15 ...
Page 24: ...1 2 20 ThinkCentre Hardware Maintenance Manual ...
Page 25: ...1 2 Chapter 2 Safety information 21 ...
Page 28: ...24 ThinkCentre Hardware Maintenance Manual ...
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Page 118: ...114 ThinkCentre Hardware Maintenance Manual ...
Page 146: ...Figure 83 Removing the system fan assembly 142 ThinkCentre Hardware Maintenance Manual ...
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