Use your computer to sign in to your account and see if it acts any differently. If your browser inputs the password automatically, type it yourself instead of accepting the auto log in. That will help verify the ID (which you can see) and the password. If that works OK and the Fire does not accept that, it's time to contact Kindle support for help.
Click Help at the top of most Amazon pages Click Kindle Help, Video tutorials & Tools Click Contact us (right column)
i have no trouble signing into Amazon. I contacted customer support and he told me to see if we had a usb connecter that would fit the Kindle. There is no USB for the Kindle Fire. Then he said to upgrade from a 6.0 to a 6.1. the upgrade button won't light up. Then he said they are working on the problem and to try tomorrow., Not real happy right now
Is your device one that you had pre-ordered device by chance?
I was having this problem with my Kindle Touch that I had pre-ordered. It was showing as registered in my account online, but the phycial device I had received was showing as un-registered (same serial no. and everything). I asked CS to contact me via phone from the website. They called me within minutes. I did have to wait on the phone for a while, but once I was speaking to someone in CS I explained what was going on and they connected me to a specialist. The specialist had to de-register my Kindle Touch on his end, had me do a hard re-boot and then had me register it on my end from the Kindle Touch. It worked like a charm. I am one super happy customer now. I hope this helps anyone else having this issue to resolve things, too.
Here's a little more info on how I got CS to contact me directly.
To do this, I logged in to my account online, went to "Manage Your Kindle". Once on that page, there is a drop-down box on the right side of the screen for "Kindle Help". When you hover over the drop-down box, it gives you a few options. I clicked on "Contact Us". I was then directed to a new page for "Contact Kindle Support" and I clicked on the link for that. The next page will have you choose your device. You'll then have to select details about the issue. Here's what I selected: Issue: Kindle Device Issue Details: Registration/Payment Set up Additional Details: Register my Kindle
Then I scrolled down and and clicked "Call Us" from the options for how I would like for them to contact me. Next, I just entered my phone number. I was contacted within a few minutes.
i got the problem solved after speaking to my third customer service rep. the first two didn't seem very knowledgeable at all, and didn't seem to speak English as a first language. I asked for an expert and got somebody who was very helpful. Amazon had put my email address in wrong.........as in Kindle.com instead of my real email address. He fixed the problem on his end, and now no problems. It took 5 hours of complete frustration though. I was ready to return the darn thing and go buy an Ipad.
Why couldn't there just be a 'start' sheet with the $200 product so the new customer wouldn't feel so frustrated. I've had the same registration problem as above and will tell anyone who is going to buy one NOT TO.
I had the same problem. Don't waste your time with the reps. Log on to Amazon.com -> Manage your Kindle -> Manage your devices. If you see your Kindle listed there, deregister it. Then on your kindle device go to Settings -> Device -> Restore Factory settings. (Yes, you have to do this even if your Kindle is brand new. Go figure.) It will take a few minutes to reboot and then you can set it up from scratch.
If you absolutely must contact support, just go to online chat. The first rep will try generic things so don't waste your time with him/her and ask for a technical Kindle specialist.
Kindle Fire, Full Color 7" Multi-touch Display, Wi-Fi My first Kindle Fire lasted for a week before it died. Amazon sent me a new KF and I couldn't register it. Kept getting that message to call customer service. After trying to register to a different Amazon account (didn't help) I finally called customer service. The rep was very pleasant and took me quickly through the registration process, which of course didn't work. She then asked me for the serial number and the MAC address and successfully registered my new Kindle online. She explained that the KF device had not been "fulfilled" and she accomplished that with the MAC address. The KF itself still didn't think it was registered. The rep acknowledged that there are some reported issues with content download and suggested I turn the KF off for a couple of hours and then see if the registration was in place. Being the impatient person I am, I turned it off for all of 9 minutes. When I turned it back on it was fully registered. I clicked Sync and all is right with the world.
I had the exact same problem, and contacted customer service. In less than 60 seconds I was on with a very helpful CS rep (Melissa) who took the serial number and Wifi MAC address, registered it online and got everything connected. The whole process was fixed in minutes. Thank you, Amazon!