I'm a big fan of your product but recently I've been having issues since I purchased a Surface Pro 4 (i5).
Quite frequently, (but not always) my playback will stutter, often to the point of the content not being watchable. Most recently when I was watching a 3.5gb mkv file it began to stutter when the scene had lots of background movement. (the slomo scene towards the end of Zoolander 2). My CPU usage is low and my computer and chromecast are no more than 5 meters from the router, with no obstructions. This often occurs when watching movies, less with TV shows.
This issue rarely occurred on my old device (2011 MacBook pro i7), but since the upgrade, Videostream has become very unreliable.
Could this be due to the different NIC? limitations with the Chromecast itself? Higher compressed content? Windows/Mac?
I'd really like to resolve this as I happily pay for your product and would really like to continue to use it, but these days I often go back to a USB drive for watching content.