Use this solution to solve the E_ADEPT_REQUEST_EXPIRED error that occurs when activating Adobe Digital Editions or when downloading an eBook.

The E_ADEPT_REQUEST_EXPIRED error can occur in the following situations:

  • When you activate Adobe Digital Editions 1.x
  • When you download and open EPUBs

Error while activating Adobe Digital Editions 1.x

You can sometimes get the following error message while activating Adobe Digital Editions:


If any of the following system settings are incorrect, this error can occur:

  • Clock time
  • Date
  • Time zone

Solution: Correct the time, date, and time zone settings

Carefully check your device's system time, date, and time zone to verify that they are correct in relation to your location. You can access time settings by clicking or double-clicking your clock. In addition, check whether the daylight savings time feature is enabled for your time zone.

Error while downloading an eBook

You can sometimes get the following error message while trying to download and open an eBook:

 E_ADEPT_REQUEST_EXPIRED error when downloading a book
E_ADEPT_REQUEST_EXPIRED error when downloading a book

Adobe Digital Editions (ADE) uses ACSM files to download ebooks. When you purchase an eBook, you receive an ACSM file. You open the ACSM file in Adobe Digital Editions, and it then downloads the eBook. The ACSM contains an expiry time, and if you don't download the book within that token expiry time, you can't download the eBook.

Solution: Try the eBook download again

To fix this issue, download the book again from your library website or bookstore. When you download the ACSM file, be sure to open it right away so you can download your selection without any errors.

This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported License  Twitter™ and Facebook posts are not covered under the terms of Creative Commons.

Legal Notices   |   Online Privacy Policy