Diagnostics reports a failure Cause Solution

Network status link light never flashes.

NOTE: The network status light is supposed to flash when there is network activity.

Cause	Solution

No active network is detected.	Check cabling and network equipment for proper connection.

Network controller is not set up properly.	Check for the device status within Windows, such as Device
	Manager for driver load and the Network Connections applet
	within Windows for link status.

Network controller is disabled.	1. Run Computer Setup and enable network controller.
	2. Enable the network controller in the operating system
	via Device Manager.

Network driver is not properly loaded.	Reinstall network drivers.

System cannot autosense the network.	Disable auto-sensing capabilities and force the system into
	the correct operating mode.

Diagnostics reports a failure.

Cause	Solution

The cable is not securely connected.

Ensure that the cable is securely attached to the network connector and that the other end of the cable is securely attached to the correct device.

The cable is attached to the incorrect connector.	Ensure that the cable is attached to the correct connector.

There is a problem with the cable or a device at the other	Ensure that the cable and device at the other end are
end of the cable.	operating correctly.

Network controller interrupt is shared with an expansion	Under the Computer Setup Advanced menu, change the
board.	resource settings for the board.

The network controller is defective.	Contact an authorized service provider.

Diagnostics passes, but the computer does not communicate with the network.

Cause

Solution

Network drivers are not loaded, or driver parameters do not match current configuration.

Make sure the network drivers are loaded and that the driver parameters match the configuration of the network controller.

Make sure the correct network client and protocol is installed.

The network controller is not configured for this computer.

Select the Network icon in the Control Panel and configure the network controller.

Network controller stopped working when an expansion board was added to the computer.

Cause	Solution

Network controller interrupt is shared with an expansion	Under the Computer Setup Advanced menu, change the
board.	resource settings for the board.

Solving Network Problems 279