Please follow the steps below from your computer with Windows 7 connected to internet via wireless and you will see the network key:

1- Click Start

2- Click Control Panel

3- NOW, make sure you select "View by: LARGE ICONS" on the upper right corner.

4- Click "Network and Sharing Center"

5- Click "Manage Wireless Networks" on the left

6- Double click your wireless network name

7- Click the "Security" tab

8- Click "Show characters"

9- Now find your password XXXXX to "Network security key". Write this password XXXXX

Then, to connect to Wi-Fi follow these simple steps:

1. Tap the Quick Settings icon

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   in the top right hand corner of the Home screen.
   
   
2. Select Wi-Fi.
   
   
3. Ensure Wireless Networking switch is in the on position.

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A list of networks will appear. You may have to wait a moment as your Kindle detects networks in range. If your network doesn't appear tap the box next to Wireless Networking off and on to refresh the list.

1. Tap the name of the network you wish to connect to from the list of available networks.
   
   Tip: When viewing Kindle Fire in landscape view, you may need to scroll through the list of available networks, using your finger to swipe through the list.
   
   
2. If a lock symbol appears next to your network, it requires a password. Enter the characters of the password using the onscreen keyboard. (Here, please enter the password XXXXX just got from your computer)
   
   
3. Tap Connect.

Tip: Tap the 123!? key to enter numbers or symbols. Tap the ABC key to return to the regular keyboard. Tap the Shift key (up arrow) for uppercase letters.

Once you are connected to a Wi-Fi network, Kindle Fire automatically connects to it again whenever that network is in range. If more than one previously used network is in range, your Kindle Fire automatically connects to the network that was most recently used.

If I helped please scroll down and click the green Accept button

Thank you

John C.
Computer Science Engineer