Sony PCG-R505ELP VAIO User Guide (primary manual) User Manual page 146

The computer cannot connect to a Wireless LAN Access Point.

Check if the Wireless LAN switch on the left side of the computer is in the ON position.
 Check if power to the Access Point is on.
 Check if the Access Point is displayed in the "Available networks" window. Do the following:
1. Click Start and select Control Panel.
2.
Click Network Connections.
3.
Right-click Wireless Network Connection and select Properties. The Wireless Network Connection
Properties dialog box is displayed.
4.
Select the Wireless Networks tab, and check if the Access Point is displayed in the "Available networks"
window.
 Connection availability is affected by distance and obstructions. You may need to move your computer away from
obstructions or nearer to any Access Point you may be using.
 Be sure that the encryption key is correctly inserted.
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