HP Z4 G4 Maintenance And Service Manual page 66

Table 6-2 Solving network problems (continued)
Network driver does not detect network controller.
Cause
Incorrect network driver.
Network status link light never flashes.
NOTE: The network status light is supposed to flash when there is network activity.
Cause
No active network is detected.
Network controller is not set up properly.
Network controller is disabled.
Network driver is not properly loaded.
System cannot autosense the network.
Diagnostics reports a failure.
Cause
The cable is not securely connected.
The cable is attached to the incorrect connector.
There is a problem with the cable or a device at the other end of
the cable.
The network controller is defective.
58 Chapter 6 Troubleshooting without diagnostics
Solution
Type device manager in the taskbar search box, and
then select Device Manager from the list of applications.
Check the network controller documentation for the correct driver
or obtain the latest driver from the manufacturer's Web site.
Solution
Check cabling and network equipment for proper connection.
Check for the device status within Windows, such as Device
Manager for driver load and the Network Connections applet
within Windows for link status.
Type device manager in the taskbar search box, and then
select Device Manager from the list of applications.
1. Run Computer Setup and enable network controller.
2. Enable the network controller in the operating system using
Device Manager.
Type device manager in the taskbar search box, and
then select Device Manager from the list of applications.
Reinstall network drivers.
Disable auto-sensing capabilities and force the system into
the correct operating mode.
Solution
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.
Ensure that the cable is attached to the correct connector.
Ensure that the cable and device at the other end are operating
correctly.
Contact an authorized service provider.