Troubleshooting Guide
2–36 www.hp.com Troubleshooting Guide
Troubleshooting Without Diagnostics
Network status link light 
never flashes.
✎
The network status 
light is supposed to 
flash when there is 
network activity.
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. See the 
Network & Internet 
Communications Guide on the 
Documentation CD.
System cannot autosense 
the network.
Disable auto-sensing capabilities 
and force the system into the correct 
operating mode. See the Network 
& Internet Communications Guide 
on the Documentation CD.
Diagnostics reports a 
failure.
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.
Solving Network Problems (Continued)
Problem Cause Solution










