HP Compaq Elite 8300 All-in-One Maintenance & Service Manual page 136

Table 8-11
Network status link light never flashes.
NOTE: The network status light is supposed to flash when there is network activity.
Cause
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.
Diagnostics passes, but the computer does not communicate with the network.
Cause
Network drivers are not loaded, or driver parameters do not
match current configuration.
The network controller is not configured for this computer.
Network controller stops working without apparent cause.
Cause
The files containing the network drivers are corrupted.
The cable is not securely connected.
The network controller is defective.
128 Chapter 8 Troubleshooting Without Diagnostics
Solving network problems (continued)
Solution
1. Run Computer Setup and enable network controller.
2. Enable the network controller in the operating system
via Device Manager.
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.
Solution
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.
Select the Network icon in the Control Panel and configure
the network controller.
Solution
Reinstall the network drivers, using the Recovery Disc Set
created from the hard drive's Recovery Partition.
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.
Contact an authorized service provider.