Trying to open an ebook in ADE and getting error message: Error getting license. License server communication problem: E_STREAM_ERROR

What worked for me was to pause my anti-virus (I'm using Kaspersky Pure 3.0) and simply resume after the download was complete but first check the above mentioned by Dominic Michael.

"Please check your internet connection, any proxy or firewall is blocking the communication with the licensing server."

Please check your internet connection, any proxy or firewall is blocking the communication with the licensing server.