YouTube Videos Stopped Streaming

Solution 1:

Try the following

on your top panel

1. Go To connections.
2. Edit Connections
3. Pick "Wired connection 1 (or whatever name it has)" and click on edit.
4. Change MTU Value from Auto to 1492, and click on save.

I had the same problem before where it just showed me the animation with the little circles running and a few moments after, the message "there has been an error, try again later", if you have the same problem, then doing that should fix it, I was pointed in the right direction by a friend in this Question, just click on it and you'll see the comment.

Hope this solves your problem.

Solution 2:

Re-install the Ubuntu Restricted Extras package.