3Com WL-305 warranty Using the Tools, Window, Condition Description

32CHAPTER 5: TROUBLESHOOTING

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Computer operating system does not recognize the card.

In the WLAN Launcher window, you see a yellow X on the client icon.

The diagnostic adapter presence test fails.

Make sure the card is properly inserted in the slot.

Make sure that PCMCIA support is installed.

Check whether a card is already in use.

Windows 95, Windows 98, Windows Millennium Edition (Windows Me), and Windows 2000: Check whether the computer has a Plug and Play BIOS.

Windows NT: Make sure that CardWizard is installed on your computer and that you have removed any utility that is similar to CardWizard.

	Client cannot associate with an		Click the Padlock icon to display Security/Network settings.
	access point.		Make sure that the WLAN Service Area set on the client
	In the WLAN Launcher window,		matches that set on the access point. Or, set the client to
			Attach to any WLAN Service Area.
	you see a red dotted line with
	an X.		Make sure that encryption is set up correctly and matches
	Diagnostic network connection		security set on the access point. See “Changing Network
			and Security Settings” on page 23 and “40-bit Shared Key
	test fails.
			(Wi-Fi) Encryption Settings” on page 24.
			If you are associating with a 3Com AirConnect® access
			point, make sure that the Short RF Preamble parameter is
			disabled on both access points.
	There is no network association		Log out and log in again, or restart the computer to restore
	when the computer becomes		the connections.
	active again after being in sleep
	mode or after the PC Card is
	removed and reinserted.
	Client cannot communicate with		Make sure that fixed IP settings are correct.
	the network.		If you are connecting to a wired network, make sure that
			the access point you are associated with is connected to the
			wired network.
			If you are using a DHCP server, release/renew the IP address.
	Client is not working under		Make sure that CardWizard is installed and that any utilities
	Windows NT.		similar to CardWizard are not installed.
	The PC Card LED indicates the following:
	Condition	Description
	Off	The computer does not recognize the PC Card.
	On, but not blinking	The computer recognizes the PC Card, but the card is not
		functioning.
	Blinking	The PC Card is operating. The blink speed ranges from approximately
		once every 2.5 seconds to approximately 10 times per second. Slow
		blinking indicates that the client is either not associated to an access
		point or is associated at a slow rate. Fast blinking indicates a good
		network association and fast transmission.
Using the Tools	In the Tools window you can change your password, run diagnostics, or upgrade
Window	the PC card firmware. If you have 3Com Administrator Utilities, you can also
	connect to the access point and perform management administration functions.

See the following topics for more information: ■ “Changing Your Password” on page 28