File transfers refused.
THROUGH THE APPLICATION
Raise upload_max_filesize and post_max_size in cPanel > MultiPHP INI Editor.
post_max_size must be larger than upload_max_filesize, since it includes the whole request.
Raise max_execution_time as well; large uploads frequently fail on time rather than size.
THROUGH FILE MANAGER
cPanel File Manager has its own limits. For anything large, use FTP instead.
CHECK DISK AND INODES
A full account silently fails uploads. Check the statistics panel for both.
Inode limits are reached more often than disk limits on sites with many small files.
PERMISSIONS
The destination directory must be writable: 755 with correct ownership.
FOR VERY LARGE FILES
Compress into an archive, upload the single file, and extract on the server.
One large transfer is far more reliable than thousands of small ones.
IF THE APPLICATION HAS ITS OWN LIMIT
Some have separate settings. Check the application as well as PHP.
