Galaxy Australia has recently changed the URL for FTP uploads. If you need to upload large files to Galaxy Australia, simply log in to the FTP server at ftp://ftp.usegalaxy.org.au/ with your favourite FTP software using your Galaxy Australia credentials. For help visit the tutorial.
Free FTP Client Software can be downloaded for your Operating System at: https://filezilla-project.org/ or https://cyberduck.io/