Help for Connecting to the Internet
You may encounter problems in connecting your Kindle to the internet. The first thing that you must remember is that the strength of the internet signal will vary as per the position of your Kindle. So, simply trying to move the device a bit, so as to catch a better signal strength, can do the trick; otherwise you should try the following tip:
The 6″ Kindle 2 and the 9.7″ Kindle DX use AT&T, while the older Kindles work on Sprint, and the procedure varies for each version, but the below-mentioned Kindle troubleshooting tips are not meant for the original Kindle 1.
Note: The following steps should be tried if you were previously able to connect to the internet but your Kindle is no longer connecting. If your new Kindle device is not connecting to the internet, it should be dealt with in a different way.
Firstly, try to clear the internet cache, browser cookies, and clear browsing history. Now, restart your browser, and go to the Menu option.
For AT&T-based Kindle DX devices: Go to Home>Menu>Settings, type 311, and pick a different provider from the list of various providers listed.
For Sprint-based Kindle models: Go to Home>Menu>Settings, and type 611, back, type 411, Home.