error message when trying to open a downloaded ebook from library

[brendab53767467]

I get the following error message when I try to open a downloaded ebook from my library thru Adobe Digital Editions: 

Unable to download.  Error getting License.

License Server Communication Problem:

E_ADEPT_REQUEST_EXPIRED

I have already tried de-authorizing ADE and re-authorizing.  That didn't work. 

Any suggestions?

[Nanaky]

The error is a problem with time, data or timezone. Check if all fine on your device. Its this all fine should the Library check the download server.