49Wireless LANCAUTIONz To avoid unauthorized access to the computer through wireless LANWe recommend you to make security settings such as encryption before using wireless LAN. Otherwise the hard diskdata such as the shared files can be exposed to the risk of unauthorized access.NOTEz Communication is established through the wireless LAN antenna (A). Do notblock the antenna area with your hand or body.z You cannot use the wireless LAN function together with the Fast User Switchingfunction.z The transmission rate will be lower when a microwave oven is used near by.z To use wireless LAN, set [Wireless LAN] to [Enabled] (default) in the [Advanced -Wireless Configuration] menu of the Setup Utility (Î page 56). To turn on/off wireless LANÎ page 46, Disabling/Enabling Wireless Communication To check the wireless LAN communication status1 Place the cursor over the Wireless Switch Utility icon ( or ) on the notification area.A tooltip appears.NOTEz The Wireless Switch Utility icons ( and ) indicate the on/off status of wireless communication, not theIEEE802.11a setting.z If the setting is changed in [Device Manager], the display will be changed accordingly.z Perform either of the following procedures to check the status in Intel ® PROSet/Wireless Software.• Double-click , or on the notification area.• Click [start] - [All Programs] - [Intel PROSet Wireless] - [WiFi Connection Utility].A