Playback on browsers

On any of my computers (tried multiple browsers and computers both hard wired and wireless) I can’t get playback to work. It starts buffering then says disconnected. Every single other device on my home network works great (iOS/android). Not sure what is going on. Thoughts?

All video on browsers have to be transcoded. Not sure what you are running for a server. But that could be the problem.

Depends on the source. Some can just be remuxed.
Best thing would be to see what the DVR log says when it happens.