An External Device Is Not Working; The Wlan Connection Is Not Working - HP 435816-001 Getting Started

Troubleshooting

An external device is not working

Follow these suggestions if an external device does not function
as expected:
Turn on the device as instructed in the device user guide.
Some devices may not be powered by the computer, and must
be turned on before the computer is turned on.
Be sure that all device connections are secure.
Be sure that the device is receiving electrical power.
Be sure that the device, especially if it is an older one, is
compatible with your operating system. For compatibility
information, refer to the device manufacturer's Web site.
Be sure that the correct drivers are installed and updated.
Drivers may be available on a disc included with the device
or on the device manufacturer's Web site. For more
information about updating drivers, select Start > Help and
Support.

The WLAN connection is not working

If a WLAN connection is not working as expected, follow these
suggestions:
Be sure that the wireless light on the computer is on. If the
light is off, press the wireless button to turn it on.
Be sure that the computer wireless antennae are free from
obstructions.
Be sure that the cable or DSL modem and its power cord are
properly connected, and the lights are on.
4–6 Getting Started