User's Manual

100
LifeBook T Series Tablet PC - Appendix
Troubleshooting
TROUBLESHOOTING THE WIRELESS LAN
Causes and countermeasures for troubles you may encounter while using your wireless LAN are described in the
following table.
Problem Possible Cause Possible Solution
Unavailable
network
connection
Incorrect network
name (SSID) or
network key
Ad hoc connection: set the network names (SSIDs) and network keys of
all computers to be connected to the same values.
Infrastructure connection: set the network name (SSID) and network
key to the same values as those of the access point.
Set the network authentication according to the access point.
Poor radio wave
condition
Ad hoc connection: Retry connection after shortening the distance to
the destination computer or removing any obstacles for better sight.
Infrastructure connection: Retry connection after shortening the
distance to the access point or removing any obstacles for better sight.
To check the wave condition, refer to the following pages:· Windows
XP: "Confirming the status of the radio waves" on page 97.·
Radio wave
transmission has
stopped
Check if the wireless switch is turned ON. Also verify "Disable Radio" is
not checked in "Network setting" window. Verify that the driver has
been correctly initialized. This can be accomplished in the Device
Manager. Refer to "Starting Transmission" on page 92.
The computer to be
connected to is
turned off
Check if the computer to be connected to is turned ON.
Active channel
duplication due to
multiple wireless
LAN networks
If there is any other wireless LAN network nearby, change channels on
the Access Point to avoid active channel duplication. For the method of
checking active channels, refer to the following pages:· Windows XP:
"Confirming the status of the radio waves" on page 97·
No right of access to
the network to be
connected
Check with your Network Administrator if you have a right of access to
the network to be connected with.
Incorrectly-
performed network
setting
Check the protocol, work group name or shared setting.
For the method of checking, refer to the following pages:· Windows XP:
"Connection to the Network" on page 95·.
Unmatched
[Network
authentication
(shared mode)]
settings in Windows
XP
If the setting of [Network authentication (shared mode)] is not matched
with that of access point or computer to be connected with, no commu-
nication can be established. Check the parameter setting.Refer to
"Assigning parameters" on page 93.
The Wireless LAN
On/Off switch is
switched to Off.
Change the switch position to On.
T Series.book Page 100 Thursday, July 31, 2003 10:49 AM