Unable to download films

Just purchased a new 2t  Neo and downloaded the latest app from windows (last week). I have a premium membership. While I can stream the films, I can’t download any.  The progress never gets past zero and after a minute or so, it says a problem occurred. I tried this on two different laptops with the same result. Tried at 1080P and 720P. Is this just a periodic server issue, or something worse?