If like me you use php-fpm with nginx and you ramp up the upload file size in the fpm configuration, you will also need to remember to put a line into your nginx configuration file.
I prefer to add this on a per-vhost basis but you can add it to the
http section of the
If you change the
256m to whatever value is set as your
upload_max_filesize and restart nginx you will be good to go.