How to Find the Name of Your Wi-Fi Network
Your Wi-Fi network is identified by its "service set identification" name, or SSID. This SSID is what is what you select when connecting to your wireless network. By default this is usually named after your router's manufacturer, but it could have been renamed to just about anything. You can locate your SSID by physically connecting to your router and looking through its wireless settings.
Connect an Ethernet cable from your computer's Ethernet port to one of the numbered ports on your wireless router.
Open your Web browser and enter the router's IP address. This is usually listed in the router's documentation. If you cannot locate the documentation, try "http://192.168.0.1" which is a very common router IP address. You can also click the "Start" button, type "cmd", and press "Enter" to launch the command prompt. Type "ipconfig" in the Command Prompt, and press "Enter." Your router's IP address will be listed after "Default Gateway."
Enter your router's username and password, which also should be listed under the documentation. If you don't know this information, try "admin" for the username, and for the password, use "password", "admin" or leave the field blank.
Click the "Wireless Network" settings.
Look for a listing that says "SSID" or "Wireless Network Name." This will be the name of your Wi-Fi network. Each router is a little different, so you may have to browse around a bit to locate the entry. If you have the documentation that came with the router, you can consult the manual for further information.