Fujitsu LIFEBOOK E549 Operating Manual page 102

Appendix
Problem
Unavailable network connection
(continued)
100
Possible Cause
The WLAN device was
deactivated or is disabled
The computer to be connected
is turned off
Incorrectly configured network
settings
RF interference from Access
Points or other wireless
networks
Wireless network authentication
has failed
Incorrect IP address
configuration
Possible Solution
Check if the wireless switch
is turned On. Go to Start >
Control Panel, and doubleclick
on Windows Mobility Center. If
the wireless network is off, click
the Turn wireless on button.
Check if the computer to be
connected is turned ON.
Recheck the configuration of
your network settings.
The use of identical or
overlapping RF channels can
cause interference with the
operation of the WLAN device.
Change the channel of your
Access Point to a channel
that does not overlap with the
interfering device.
Re-check your Network
Authentication, Encryption,
and Security settings.
Incorrectly configured
security settings such as
an incorrectly typed WEP
key, a mis-configured LEAP
username, or an incorrectly
chosen authentication method
will cause the LAN device to
associate but not authenticate
to the wireless network.
This only applies to networks
using static IP addresses.
Please contact your network
administrator for the correct
settings.
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