Sony VGN-FW170J - Manual (Page 143)

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Troubleshooting
Networking
What should I do if my computer cannot connect to a wireless LAN access point?
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Connection availability 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.
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Make sure the WIRELESS switch is on and the WIRELESS indicator is lit on your computer.
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Make sure power to the access point is on.
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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 Right-click the power status icon on the taskbar and select Power Options .
2 Click Change plan settings under the current power plan.
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 .