Feb 06, 2020 03:01 PM|PatriceSc|LINK
Are you testing the SAME video file on both? AFAIK mp4 is quite generic and depending on the underlying exact encoding one file could work while another could fail.
I would also check which components were installed. I would also trace events such as
https://developer.mozilla.org/en-US/docs/Web/Guide/Events/Media_events (starting with the "error"event) to see if I can get some more details from the browser about what happens).
Edit: what if you test http://camendesign.com/code/video_for_everybody/test.html ?
Edit 2: could it be you had something such as https://stackoverflow.com/questions/7666705/how-to-enable-byte-range-http-requests-in-iis on the previous