I get this error message when I try and open a book I downloaded from the public library.

[Guest]

Unable to download. Error getting license. License Server Communication Problem: E_ADEPT_REQUEST_EXPIRED

How do you fix this?

[heybuditsdanny]

So I had this same problem with my public library as well you have to make sure you have downloaded the correct ADE version for your nook or kindle. I accidently downloaded ADE 4.0 and it had that same message I deleted the 4.0 version and downloaded the 2.0 versversion and now it works you have to make sure that you use the correct ADE software very important.