Problems opening U of P locked documents with DC Reader?

[Bob2014]

Has anyone had problems opening U of P locked documents with DC Reader? Some documents open, others don't? Foxit Reader opens all the documents without difficulty??? I have discussed this issue with U of P technical support, they believe it is a DC problem

[Test Screen Name]

What is a U of P?

What error or problem do you get?

[Bob2014]

University of Phoenix. To unlock a document, Acrobat DC needs to contact the University of Phoenix Library via the internet.

[Test Screen Name]

Thanks. So, when it fails, what exactly happens?