NDC comm NWH4020 manual The wireless network is

The wireless network is	1. Move the computer closer to the access point (AP)
often interrupted (the	to find a better signal. If the signal is still weak, try
taskbar icon shows red, or	changing the adapter’s height or orientation.
the link quality indicator	2. There may be interference, possibly caused by a
shows black).
	microwave oven, 2.4-GHz wireless phone, or
	metal objects. Move these interference sources or
	change the location of the computer or AP.
	3. Change the wireless channel on the AP. See the
	user’s guide for the AP.
	4. Make sure the AP’s antenna, connectors, and
	cabling are firmly connected.
The AP cannot be detected	The distance between the AP and the computer may
by the Site Survey tool.	be too great.
	The Secure SSID option might be enabled on the AP.
	See the user’s guide for the AP.
You can join a network	Make sure the Domain Name (SSID) setting is
using the Site Survey tool	correct. Note that the setting is case-sensitive and
but not if you type the	cannot contain any spaces.
settings manually in the
Adapter Properties
window.
You encounter a “Divide	This can happen if the system was not restarted after
Error” when you try to run	the utility was installed. Restart the system and the
the InstantWave Utility.	utility will run correctly.
Your IBM ThinkPad X20	The IBM ThinkPad X20 and some other notebooks
seems to “freeze” after you	need extra time to get/set the TCP/IP parameters for a
install the InstantWave	wireless (or wired) network adapter. Allow the
Utility and restart the	system three to five minutes to start up. The adapter
system.	will then operate normally.
The system restarts if you	This is a known problem with certain older versions
try to shut it down while	of Microsoft® Windows. Close the utility before
the InstantWave Utility is	shutting the system down.
running.

26 InstantWave 11-Mbps USB Wireless LAN Adapter