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 end of
the cable.
Ensure that the cable and device at the other end are operating
correctly.
Network controller interrupt is shared with an expansion board.
Under the Computer Setup Advanced menu, change the 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 and Sharing Center icon in the Control Panel
and configure the network controller.
To access Control Panel in Windows 7, click Start, and then select
Control Panel.
To access Control Panel in Windows 8.1, from the Start screen,
type
c
, and then select Control Panel.
To access Control Panel in Windows 10, type
control panel
in
the taskbar search box, and then select Control Panel from the
list of applications.
Network controller stopped working when an expansion board was added to the computer.
Cause
Solution
Network controller interrupt is shared with an expansion board.
Under the Computer Setup Advanced menu, change the resource
settings for the board.
The network controller requires drivers.
Verify that the drivers were not accidentally deleted when the
drivers for a new expansion board were installed.
The expansion board installed is a network card (NIC) and conflicts
with the embedded NIC.
Under the Computer Setup Advanced menu, change the resource
settings for the board.
Network controller stops working without apparent cause.
Cause
Solution
The files containing the network drivers are corrupted.
Reinstall the network drivers using the Recovery Disc Set in
Windows 7 or Windows recovery tools in Windows 8.1.
Solving Network Problems
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