Just upgraded to Windows 10 and reinstalled ADE and think it is authorized. When I try to download a library book to ADE, I get a message "Unable to download. Error getting License. License Server Communication Problem: E_LIC_ALREADY_FULFILLED_BY_ANOTHER_USER"
Hello, I have a similar issue. I have Digital editions that was installed under windows 8. I haven't used it for a number of months and in the interim updated to Windows 10. I purchased a new book which wont register due to a licencing error. I have tried to Deauthorise and reauthorise ADE but that fails at the deauthorisation attempt. I have tried removing and re-installing ADE software to no effect. I spent over 30 minutes on a chat and they eventually sent me here! Seems the licence checking facility is broken. Any one have any thoughts?