-If you are using Windows 2000 and the network is not scanned in the [Status] window of Client Manager program, click File > Enable Wireless Network.
A6 Check if the wireless LAN card is recognized.
If "There is no wireless network card driver installed. Communication is unavailable." message is displayed, the card is not recognized. The driver may have been installed improperly, or it may be due to a wireless LAN card error. Reinstall the driver.
Q5 In the Windows XP 'Available wireless networks' window, the Wireless Network Connection is displayed as 'Not Available'.
A1 Check that the specific program for a wireless LAN connection is installed. Windows XP supports wireless LAN connections through the Wireless Zero Configuration (WZC) service. Therefore, an additional program for a wireless LAN connection is not required. However, installation of the specific program for a wireless LAN connection may disable the 'Available wireless networks' window of the Wireless Network Connection supported by WZC service in certain cases. Exit the program and try again.
A2 Initialize the device driver.
Click Start > Control Panel > Performance and Maintenance > System > Hardware tab > Device Manager > Network adapters, and select the wireless LAN adapter.
A3
Q6 The Wireless network connection operates properly, but the Wireless Network Connection icon on the Taskbar displays the "Disconnected" message.
AThis is one of the known problems when you are using a wireless LAN connection after installing Windows XP service pack 1.
Check that the wireless LAN card is operating properly by initializing the device driver referring to A2 of Q5. For more information, refer to the following link for known problems with Microsoft.