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Troubleshooting > Networking (LAN/Wireless LAN) n173 N Networking (LAN/Wireless LAN) What should I do if the VAIO Smart Network icon is not displayed on the taskbar? . Click on the taskbar and check if the VAIO Smart Network icon is displayed. . If the VAIO Smart Network icon is not on the taskbar, click Start, All Programs, and VAIO Smart Network, and then change the setting to display the icon on the taskbar. What should I do if my computer cannot connect to a wireless LAN access point? . Connection capability is affected by distance and obstructions. You may need to move your computer away from obstructions or closer to any access point you may be using. . Make sure the WIRELESS switch is on and the WIRELESS indicator light is lit on your computer. . Make sure power to the access point is on. . If you want to connect your computer to a wireless LAN access point using the 5 GHz band, make sure the option to use the 5 GHz band or both the 2.4 GHz and 5 GHz bands is selected for Wireless LAN Settings in the VAIO Smart Network settings window. Wireless LAN communication (IEEE 802.11a standard) using only the 5 GHz band, available on selected models only, is disabled by default. . Follow these steps to check the settings: 1 Click Start and Control Panel. 2 Click View network status and tasks under Network and Internet. 3 Click Connect to a network to confirm that your access point is selected. . Make sure the encryption key is correct. Troubleshooting > Networking (LAN/Wireless LAN) n174 N . Make sure Maximum Performance is selected for Wireless Adapter Settings in the Power Options window. Selecting any other option may result in a communication failure. To change the settings, follow these steps: 1 Click Start and Control Panel. 2 Click System and Security and Power Options. 3 Click Change plan settings for the current power plan. 4 Click Change advanced power settings. 5 Double-click Wireless Adapter Settings and Power Saving Mode. 6 Select Maximum Performance from the drop-down list. . If you have disabled the wireless LAN function in the BIOS setup screen, you cannot connect to wireless access points. To enable the function, follow the steps in Disabling Built-in Devices (page 131). What should I do if I cannot access the Internet? . Check the access point settings. See the manual that came with your access point for more information. . Make sure your computer and the access point are connected to one another. . Move your computer away from obstacles or closer to any access point you may be using. . Make sure your computer is properly configured for Internet access. . Make sure Maximum Performance is selected for Wireless Adapter Settings in the Power Options window. Selecting any other option may result in a communication failure. Follow the steps in What should I do if my computer cannot connect to a wireless LAN access point? (page 173) to change the settings. . If you have disabled the wireless LAN function or the LAN port in the BIOS setup screen, you cannot access the Internet through a wireless network or a LAN. To enable the function or the port, follow the steps in Disabling Built-in Devices (page 131). Troubleshooting > Networking (LAN/Wireless LAN) n175 N Why is the data transfer speed slow? . The wireless LAN data transfer speed is affected by distance and obstructions between devices and access points. Other factors include device configurations, radio conditions, and software compatibility. To maximize the data transfer speed, move your computer away from obstacles or closer to any access point you may be using. . If you are using a wireless LAN access point, the device may be temporarily overlo...
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