When connected to Adobe Digital Editions (v3.0 and v4.5) the device options state that it is authorized, but when I disconnect the device from the computer, the device says it is NOT authorized. So, I can't read any of my books. This has been going on for three days now. This has happened since I got a new computer and tried to connect / download everything on the new computer. It was working fine for over a year on the old computer.
Reader was not liked on a PCs only on the Adobe ID. Have you check if can reset the reader over the reader itself?