Table 8-2Solving Network Problems (continued)

Wake-on-LAN feature is not functioning.

Cause

Solution

 

 

 

 

1.

From the Start screen, type c, and then select Control Panel

 

 

from the list of applications.

 

2.

Select Network and Sharing Center, and then click the

 

 

Ethernet link next to the connection.

 

3.

Click the Properties button.

 

4.

Click the Configure button.

 

5.

Click the Power Management tab, then enable the

 

 

appropriate Wake-on LAN option.

 

 

 

Network driver does not detect network controller.

 

 

 

 

Cause

Solution

 

 

 

Network controller is disabled.

1.

Run Computer Setup and enable network controller.

 

2.

Enable the network controller in the operating system using

 

 

Device Manager.

 

 

To access Device Manager in Windows 7, click Start, select

 

 

Control Panel, and then select Device Manager.

 

 

To access Device Manager in Windows 8.1, from the Start

 

 

screen, type c, select Control Panel from the list of

 

 

applications, and then select Device Manager.

 

 

Incorrect network driver.

Check the network controller documentation for the correct

 

driver or obtain the latest driver from the manufacturer’s Web

 

site.

 

 

 

 

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.

 

To access Device Manager in Windows 7, click Start, select

 

Control Panel, and then select Device Manager.

 

To access Device Manager in Windows 8.1, from the Start screen,

 

type c, select Control Panel from the list of applications, and then

 

select Device Manager.

 

 

Network controller is disabled.

1. Run Computer Setup and enable network controller.

 

2. Enable the network controller in the operating system using

 

Device Manager.

190 Chapter 8 Troubleshooting without diagnostics