So I downloaded a plugin that sets your max_file_upload to 250 MB and I set my php.ini to the same. I own server so it is not a server issue - I have many apps that upload very large video files.
When I am trying to upload a file, no matter how large (up to 200MB tested), it shows that the file uploads in the progress bar. If it were going over the upload limit I get an error telling me file is too big - but this is not the case.
Instead a second or two after hitting 100% on progress bar it times out with "http error". Seems like a memory issue with WP so I added define('WP_MEMORY_LIMIT', '250MB');
Doesn't work. Let me know what else I can do. It is not an issue with server. When I do phpinfo it shows 250M and I have upload many files larger than 8M on other apps on same server.
Name of the plugin is PBP Increase upload limit. Also when I do not have the plugin on I cannot download big files at all. With the plugin I can download the file - but when it gets to the "crunching" progression it faults out with the http error.