Compaq 247320-003 - Deskpro 4000 - 5166 Model 2500/CDS Reference Manual page 174

Problem
A new device is not
recognized as part of the
computer system
Problem
Remote Wakeup feature
is not functioning.
Network driver does not
detect network controller.
If you encounter hardware installation problems, refer to the
documentation that came with the hardware option and to the
common causes and solutions listed in the following table.
Cause
Computer Setup or the
configuration utility has not
been run to configure the new
device.
Cable(s) of new external
device are loose or power
cables are unplugged.
Power switch of new external
device is not turned on.
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.
Cause
The Remote Wakeup feature
is not available when using an
AUI network connection.
Remote Wakeup is not
enabled.
Network controller is disabled.
Solution
Run Computer Setup or the
Configuration utility.
Ensure that all cables are properly
and securely connected and that pins
in the cable or connector are not bent
down.
Turn off the computer, turn on the
external device, then turn on the
computer to integrate the device with
the computer system.
Solution
Use an RJ-45 network connection.
Use the Network control application
to enable Remote Wakeup.
For more information, refer to
Chapter 2, "Understanding and Using
Intelligent Manageability."
Run Computer Setup and enable
network controller.