I downloaded the Xfinity Stream App on my Firestick. When I choose a channel, it says “This video stream is not playable under the current device conditions. Please disconnect any external devices (including HDMI, screen mirroring, or casting devices) and try again.” The only thing that is plugged i

So you are saying that Comcast has recently de-authorized Firesticks as an approved device?? This is the new update, that we are forced to install/upgrade to?

I was told by comcast customer service that it was a contract negotiation. Firesticks were deauthorized while they are arguing over a contract between Comcast and Amazon.  I was told to get a Roku device.  Worst customer care ever.

Your answer makes no sense. I downloaded and installed the Xfinity streaming app on seven separate Firestick 4k units, following the directions of a Comcast support tech I had on the phone. This was over 2 years ago. They all worked fine until a few