Sony VGN-A217M Hardware Manual page 56

Hardware Guide
12 Fill in exactly the same Network key again, for confirmation.
13 Select the This is a computer (ad hoc) network; wireless access points are not used check box at the bottom of the screen.
14 Click OK.
Your Network name appears in the Preferred networks list.
15 Click OK.
The network you have created appears in the list.
Your computer is ready to communicate with another computer.
* If you want to communicate between two or more computers, you need to configure all these computers the exact same way.
This means that you need to enter the same Network name and the same Network key on all computers as on the first computer you configure.
In France, only certain channels are legally allowed when using WLAN outdoors. For more information, see the Regulations Guide.
A computer-to-computer network does not support WPA.
A Network key can contain ASCII or hexadecimal characters:
ASCII: The basis of character sets used in almost all present-day computers. ASCII is a code for representing English characters as numbers, with each letter assigned a
number from 0 to 127.
Hexadecimal: A number representation using the digits 0-9, with their usual meaning, plus the letters A-F (or a-f) to represent hexadecimal digits with values of (decimal)
10 to 15.
n N
55
Using your VAIO computer