Amazon’s Kindle is very popular among the users for sharing the amazing reading experience, but sometimes the issues like Kindle Fire Authentication Problem do not let the users get the best out of it. Users often complain that they are unable to connect their Kindle device to WiFi network and read books which is a very common Kindle concern. If you are also getting the Authentication failure while trying to connect the Kindle to the WiFi network, then read this guide. It is quite simple to troubleshoot the problem, all you have to do is to follow some simple guidelines to deal with the Kindle Fire Authentication Problem. Below, we are sharing some simple instructions that can help you with the Kindle Authentication issue. So, let's proceed further and learn how you can fix this problem.