Sony VAIO PCG41313L, User Manual

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Troubleshooting >
Networking (LAN/Wireless LAN)
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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
Wi-Fi 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.
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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.
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Make sure the encryption key is correct.
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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.
What should I do if I cannot access the Internet?
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Check the access point settings. See the manual that came with your access point for more information.
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Make sure your computer and the access point are connected to one another.
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Move your computer away from obstacles or closer to any access point you may be using.