W_ADEPT_CORE_WRONG_DEVICE

When I try to download an Ebook on a second computer, I receive the error message "W_ADEPT_CORE_WRONG_DEVICE".  I did not have any issues with this on my first computer.  I have deauthorized the first computer and gone through the steps to remove the Adept Key through the Registry Editor, and still no luck.  I create an account and use my Adobe ID so that I could view the purchase on multiple devices.