Note: Many issues with playback using the MediaFront module are usually due to improperly formatted/encoded files. Please take the time to learn how to properly format and encode your files.
Make sure to test your video playback in multiple browsers, Operating Systems and devices to see if you can replicate the issue you are having before proceeding. Isolating which browser, OS and device that are causing the issues will aid in determining which solution might be best.
Download properly encoded sample video files to use for testing purposes. Included in an .mp4, .webm and .ogv. Files are licensed under the Creative Commons Attribution 3.0 license for the Peach Open Movie Project, Big Buck Bunny.
Issue: The player doesn't play your files.
Solution: The mimetype is likely set incorrect or not at all on your server. The mimetype must be set, or HTML5 browsers refuse to play the files.
Setting mime types in Apache
Setting mime types in Windows IIS
Setting mime types using cPanel