User's Manual

62
Troubleshooting
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
netw ork
connection
Incorrect netw ork
name (SSID) or
netw ork key
Ad hoc connection: verif y t hat the netw ork names (SSID’s) and netw ork
keys (W EP) of all computers to be connected have been configured
correctly. SSID’s and W EP key values must be identical on each machine.
Access Point (Infrastructure) connection: set t he netw ork name (SSID)
and netw ork key to the same values as those of the access point .
Set t he Netw ork Authentication value identically to that of the Access
Point. Please consult your net w ork administrat or f or t his value, if
necessary.
For the method of setting netw ork authentication, refer to the follow ing
pages:· “ Assigning parameters” on page 55·
Poor radio w ave
condition
Ad hoc connect ion: Retry connection after short ening the distance to
the destination computer or rem oving any obstacles f or better sight.
Access Point (Infrastructure) connection: Retry connection after short -
ening the distance to the access point or removing any obstacles f or
bet ter sight.
To check t he w ave condition, ref er to the follow ing pages:· “ Confirm ing
the status of the radio w aves” on page 59.·
Radio w ave
transmission has
stopped
Check if the w ireless sw itch is turned O N. Also verify “ Disable Radio” is
not checked in “ Netw ork setting” w indow. Refer to “ St art ing Transmis-
sion” on page 54.
The comput er to be
connected is t urned
off
Check if the comput er to be connected is turned O N.
Active channel
duplication due to
multiple w ireless
LAN netw orks
If t here is any ot her w ireless LAN netw ork nearby, change channels to
avoid active channel duplication. For the method of checking active
channels, refer t o t he f ollow ing pages:· “ Confirming the status of the
radio w aves” on page 59·
No right of access t o
the netw ork to be
connected
Check if you have a right of access to the netw ork to be connected w it h.
Incorrectly-
performed netw ork
setting
Check the protocol, w ork group name or shared setting.
For the method of checking, refer to the follow ing pages:· “ Connection
to the Netw ork” on page 57.
Unmatched
[Netw ork
aut hent ication
(shared mode)]
settings in W indow s
XP
If the set ting of [Netw ork authentication (shared mode)] is not matched
w ith that of access point or com puter to be connected w ith, no commu-
nication can be established. Check the parameter setting.Refer to
“ Assigning parameters” on page 55.