HP WL110 Quick Install Manual page 58

A problem or conflict with the PC Card slot which
prevents the hp wireless PC card WL110 from powering
on.
A conflict of the hardware with another device.
The starting point to troubleshoot problems with your
wireless network is looking at the LED activity of the hp
wireless PC card WL110.
Table B-1 provides an overview of the various modes of
operation and the associated LED activity. It also includes a
number of troubleshooting hints, that may help you solve the
problem.
B-2 Troubleshooting