Just follow this simple steps and you will be able to connect your Kindle Paperwhite to your Wi-Fi network.
Please before actually reading the article you must have your SSID and security code with you.
1. Click on the Menu button
2. Click on Settings
3. Click on Wi-Fi Networks
4. Select correct SSID from list
5. Enter WEP key / WPA password as found on Router
or TV Menu
6. Confirm Connected
We also have screen shots to make it easier for you.