I tried different MP4 files and the same result. I even tried the one I used the night before when it was working and no change.

I have been successfully casting to my chromecast for a while now and today, the message I get on my computer is "We're having trouble talking to your Chromecast!" I can go to Youtube and play a video there, but when I tried an MP4 file, I get this message. The night before we were able to play. Can't seem to find anything on the form about this so I'm hoping I just overlooked something.

As far as I can tell, nothing has changed. The hardware is the same as it was the night before.