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Anleitung Zusammenfassung
. 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. Troubleshooting > Networking (LAN/Wireless LAN) n177 N . Make sure the encryption key is correct. . 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 Right-click the power status icon on the taskbar and select Power Options. 2 Click Change plan settings. 3 Click Change advanced power settings. 4 Select the Advanced settings tab. 5 Double-click Wireless Adapter Settings and Power Saving Mode. 6 Select Maximum Performance from the drop-down list both for On battery and Plugged in. . 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 133). 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 176) 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 133). Troubleshooting > Networking (LAN/Wireless LAN) n178 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 overloaded depending on how many other devices are communicating via the access point. . If your access point interferes with other access points, change the access point channel. See the manual that came with your access point for more information. . 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 176) to change the settings. How do I avoid data transfer interruptions? . While your computer is connected to an access point, data transfer interruptions may occur if a large file is exchanged or the computer is placed in close proximity to microwaves and cordless telephones. . Move your computer closer to the access point. . Make sure the access point connection is intact. . Change the access point channel. See the manual that came with your access point for more information. . 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 176) to change the settings. Troubleshooting > Networking (LAN/Wireless LAN) n179 N What are channels? . Wireless LAN communication uses divided frequency bands known as channels. Third-party wireless LAN access point channels may be preset to different channels from Sony devices. . If you are using a wireless LAN access point, see connectivity information contained in the manual that came with your access point. Why does the network connection stop when I change the encryption key? Two computers with the wireless LAN function may lose a peer-to-peer network connection if the encryption key is changed. You can either change the encryption key back to the origina...
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