Troubleshooting Guide
Table Of Contents
- Contents
 - Computer Diagnostic Features
 - Troubleshooting Without Diagnostics
- Safety and Comfort
 - Before You Call for Technical Support
 - Helpful Hints
 - Solving General Problems
 - Solving Power Supply Problems
 - Solving Diskette Problems
 - Solving Hard Drive Problems
 - Solving MultiBay Problems
 - Solving Display Problems
 - Solving Audio Problems
 - Solving Printer Problems
 - Solving Keyboard and Mouse Problems
 - Solving Hardware Installation Problems
 - Solving Network Problems
 - Solving Memory Problems
 - Solving Processor Problems
 - Solving CD-ROM and DVD Problems
 - Solving Drive Key Problems
 - Solving Internet Access Problems
 - Solving Software Problems
 - Contacting Customer Support
 
 - POST Error Messages
 - Password Security and Resetting CMOS
 - Drive Protection System (DPS)
 - Setting up Analog/Digital Audio Output
 - Index
 

Troubleshooting Guide www.hp.com 2–33
Troubleshooting Without Diagnostics
Solving Network Problems
Some common causes and solutions for network problems are listed 
in the following table. These guidelines do not discuss the process of 
debugging the network cabling.
Solving Network Problems 
Problem Cause Solution
Wake-on-LAN feature is 
not functioning.
Wake-on-LAN is not 
enabled.
Enable Wake-on-LAN.
1. Select Start > Control 
Panel.
2. Double-click Network 
Connections.
3. Double-click Local Area 
Connection.
4. Click Properties.
5. Click Configure.
6. Click the Power 
Management tab, then 
select the check box to Allow 
this device to bring the 
computer out of standby.
Network driver does 
not detect network 
controller.
Network controller is 
disabled.
1. Run Computer Setup and 
enable network controller.
2. Enable the network controller in 
the operating system via 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.










