Last week, Netflix announced that support for older Samsung, Roku and Vizio devices was discontinued after December 1, but it was not clear why these devices lose support beyond the fact that they were old. And a Netflix support document is not helpful because it is a problem due to "technical limitations". However, Netflix has shared some details about these technical limitations of older Roku devices with Gizmodo . The answer is quite simple: DRM.
The following is in progress: Netflix has been using Microsoft's PlayReady DRM since 2010 to make it easier to stream the streaming service to a variety of televisions, devices, and set-top boxes that you can find today while content providers convinced that your work would not be pirated. Since Netflix had already shipped devices like the affected Rokus with a previous form of outdated Windows Media DRM, they would inevitably be left behind if Netflix ever breaks the connection to the old DRM standard and these devices can not be upgraded to the newer PlayReady instead. Now, and they can not.
Gizmodo 's article from does not reveal why older Samsung and Vizio devices can not use Netflix, but we would not be surprised if It's the same reason. We asked Netflix if this was the case.