This issue deals with date and time. Make sure that the machine’s system time, date, and time zone match the time / date / zone when you purchased the PDF or ePUB. Please email the library if you have any other questions.

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1. Why is my E-Reader is no longer showing up in Adobe Digital Editions?
2. What happens if you attempt to read an E-Pub book on multiple devices?
3. What does "E_ADEPT_REQUEST_EXPIRED" mean?