Pc Card - 3Com 6000 User Manual

52 C 8: T
HAPTER ROUBLESHOOTING

PC Card

Symptom
While you are configuring the
access point, the Configuration
Management System stops
responding. In the 3Com
WLAN Launcher window, you
might see a red dotted line
with an X.
After you specify an IP address
for an access point, the Access
Point Management tool
continues to point to the old IP
address when you select the
access point in the Wireless
Network Tree.
Your wired LAN DHCP server
malfunctions, but the access
point DHCP server fails to
assign IP addresses.
The access point stops
assigning IP addresses after you
assign it an IP address.
PC Cards other than 3Com
11 Mbps Wireless LAN PC
Cards cannot communicate
with the access point.
If you have difficulty using the PC Card, try the solutions in the following table. If
you continue to experience difficulty, see "Upgrading PC Card Firmware" on
page 55 or "Uninstalling the Card" on page 54.
Symptom
PC Card LED is off.
PC Card LED is on, but
not blinking.
Solutions
To maintain wireless association, the WLAN service area on
the client and the access point with which it is associated
must match exactly. Therefore, if you are associated with the
access point that you are configuring and you change the
access point WLAN service area, make sure to change the
client WLAN service area to match.
If you change the IP address and save the change, the
browser stops responding. You maintain network
association, but you cannot continue to configure the access
point using the old IP address. Therefore, if you want to
continue configuring this access point after you save this
change, you must do the following:
1 Close your browser.
2 Return to the Access Point Management tool Wireless
Network Tree and click Refresh.
3 Select the access point and click Configure to start a new
configuration session.
In the Access Point Management window click the Refresh
button to refresh the Wireless Network Tree. Then click the
access point in the Wireless Network Tree and click
Properties. The IP address you specified is now listed. If you
want to continue configuring the access point, click
Configure.
If the Wireless DHCP Server property on the access point is
enabled, the access point assigns IP addresses after the lease
periods on the previous IP addresses expire. If you want to
force the access point to start assigning IP addresses before
the lease periods expire, unplug the access point from the
power source and plug it back in to reboot it.
Set the access point to obtain an IP address automatically. It
cannot act as a DHCP server when it has an assigned
IP address.
The cards may not support the access point's enhanced
performance features. Try turning the Network Traffic
Accelerator and Data Preamble transmission properties off.
Solutions
Make sure the card is properly inserted in the slot.
Check the PC Card icon in the Windows control panel and
make sure that the card type can be recognized.
Make sure the card is properly inserted in the slot.
Uninstall the card and reinstall it.