Your SSID is the name of your wireless network.
The network security key is the password for your wireless network (sometimes called a "passphrase"). Some networks don't require a password.
You should be able to get online now. If you get an error: "Netork Security Key Mismatch" double check your Network Key and try again. If you are still having trouble connecting you will need to contact the person who manages your network.
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Connecting a Wireless Computer
This tutorial shows you how to connect to your wireless network with your wireless password (sometimes called "network key" or "passphrase"). This tutorial is for Windows 7, other versions of Windows will look similar.
Click on the steps to show the screen shots.
If you're having trouble finding any Wireless networks you may need to Check your WiFi adapter.