Your symptoms are not consistent with what others are experiencing.
Finally...while the transcoding process has always required an Internet connection (to not only authenicate your nomad account but also do the actually data download step to your device) - however it is not required for playback. An Internet connection would be needed to view content via streaming (Watch Now) as required with any other streaming service option. These things have been the case since day one of nomad.
OK, I know that transcoding requires Internet, but now PLAYBACK requires Internet too. That's the difference that has me fuming. I had the Nets game transferred to my PC, not streaming, and it played fine in the house. As soon as I was in the car and out of range of WiFI, I got the "there is a problem with your account" error when I tried to start the app. I was able to watch the same recording on my iPhone, but as soon as I put the iPhone into airplane mode and try to open the app, it will not load. That means I can no longer PLAY BACK recorded programs that are SAVED ON my laptop or iPhone without an Internet connection. This is a major step backwards!