I have a D-Link (DSL-2750B) router with several devices connected and am able to access the internet appropriately. I tried connecting to the router with a new Kindle Fire today and am not able to connect to the router. All of my other devices (three laptops, one cell phone, one smart TV, one Kindle Fire TV) are still connecting appropriately, so I attempted to connect with other new devices and cannot connect any of them - I just get an error that says unable to connect. I've tried resetting the router, resetting my devices, and disconnecting all of my devices (that are working). The router has the default settings - I have not changed anything. Any ideas would be greatly appreciated.