Q12 An established wireless LAN connection is disconnected after 2~3 minutes, and the connection is not recovered.
A1 This may be caused by channel interference. Change the channel of the AP, and reconnect.
A2 This may be caused by selecting the ’Use IEEE 802.1x network authentication’ option when IEEE 802.1x authentication is not available.
Check the properties of the AP in the wireless network settings. If the ’Use IEEE 802.1x authentication in this network’ option is selected, deselect the option on the Authentication tab.
For more detailed information about authentication server, ask your network administrator.
A3 If the AP is configured to ’Use network authentication (Shared Key)’
If the AP is configured to authentication shared mode, all computers to be connected should be configured as follows:
-If you are using Windows XP, select network authentication(shared mode) in the wireless network settings.
Click Start > Control Panel > Network and Internet Connections > Network Connections.
-If you are using Windows 2000, check that the network authentication mode is configured to Share in the security settings of the wireless LAN program (PROSet).
For more network authentication procedures, ask your AP (Access Point) administrator.
A4 For a model with an installed 2100 11b card, check the wireless LAN driver version installed on your computer. (Click Start > Control Panel > System > Hardware tab > Device Manager. Under Network adapters,
When a driver of version 1.1.5.0 or lower is installed, remove the security patch (Q815485) if it is installed.
The WPA Q815485 patch provided by Microsoft can be used only when there is 802.11x, RADIUS, or an authentication server as well as an AP and a driver that
