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WLAN troubleshooting
14
Copyright © 2005 Nokia. All rights reserved.
If DHCP is being used but it failed to retrieve the
address, then an IP address starting with 169.254.x.x
is shown. Sometimes it might take a while (up to 2
minutes) for Nokia 9500 Communicator to receive IP
settings from the server.
If the IP addresses still appear incorrect, you can try
the following two solutions:
1 Disable WLAN power saving. To access the setting,
select Desk
→ Tools→ Control Panel→
Connections
→ Wireless LAN.
2 Try using manually configured IP settings instead of
DHCP. Notice that this requires that you have
acquired the appropriate IP settings for the
particular network. You should request them from
the network administrator.
• Wrong proxy settings: if you cannot browse the Web
even though the WLAN connection is working and the
IP settings seem to be correct, check that the HTTP/
HTTPS proxy settings are defined correctly in the
Internet Access Point settings.
• Problems with the WEP security mode: if you
encounter these, check that the WEP keys have been
entered in the correct format (ASCII vs. HEX) and have
the right number of characters. ASCII WEP keys are
also case sensitive; check that you have not confused
any upper or lower case letters in the key.
Incorrect WEP keys may cause a situation where Nokia
9500 Communicator is able to associate with a WLAN
network (the “W” icon with a box graphic is visible)
but no data can be transferred.
Also remember to check that the WEP authentication
mode is correct. In the access point it may be called, for
example, “WEP authentication”, “shared-key
authentication” or “Wi-Fi security mode”.
• Poor signal quality: to check the signal quality of your
WLAN connection, select Desk
→ Tools→ Control
Panel
→ Connections→ Wireless LAN→ Networks.
If the signal quality is weak or even moderate, you may
encounter connection problems. Try again nearer the
access point.
• Wrong security mode: if the “W” icon is displayed but
not surrounded by a box or lock graphic, the configured
security mode may not be the right mode. To check the
security mode that the network uses, select Desk
→
Tools
→ Control Panel→ Connections→ Wireless
LAN
→ Networks. Select the network and press
Details.
• Problems with the WPA or 802.1x security mode: if
you encounter these, check the following:
1 Check that the WPA mode is the right one (pre-
shared key or EAP).
2 Check the pre-shared key.
3 Check that all EAP types that are not needed are
disabled.
Nokia_9500_Using_WLAN_en_1.fm Page 14 Friday, December 9, 2005 1:08 PM