Sony Vaio VGC-LT30 Series User Manual page 97

To communicate without an access point (ad-hoc)
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You cannot select the 5 GHz bandwidth, which is used for the IEEE 802.11a standard, on ad-hoc networks.
The IEEE 802.11n draft standard, using the 2.4 or 5 GHz bandwidth, is not available on ad-hoc networks.
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You need to remove the back panel cover from the computer to access the WLAN switch. See Removing and Replacing the Back Panel Cover
20) for the procedure.
1 Turn on the WLAN switch.
2 Click Start, All Programs, and VAIO Control Center.
3 Double-click Network Connections and VAIO Smart Network.
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For information on the VAIO Smart Network software, see the help file on the software.
4 Click the button next to or above your desired wireless option(s).
Make sure the Wireless LAN indicator is lit.
5 Click Start and Control Panel.
6 Click View network status and tasks under Network and Internet.
7 Click Set up a connection or network on the left pane.
The Set up a connection or network window appears.
8 Select an option to specify the ad-hoc network settings and click Next.
9 Follow the on-screen instructions.
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Using Your VAIO Computer
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