Welcome to the forum Kelmore!
If the video is starting and stopping then it’s likely that your internet connection is running a bit slow. This can happen during prime time internet hours. Simple fix though is to hit the pause button (looks like this || ) and let it load for a minute. It won’t show that it’s loading but it is actually loading. This usually takes care of the problem. Some people with internet connection problems find it easier to download the videos from the download section. The videos can then be viewed anytime right on your computer without going online.
Hope this helps Kelmore!
Enjoy,
Bob