Test pre-requisites WebDAV server supporting SSL (HTTPS) and set up with Digest authentication WebDAV repository enabled 2 different WebDAV instances in Moodle: 'WebDAV Digest' which requires Digest authentication 'WebDAV Digest SSL' which requires Digest authentication and HTTPS Each share should contain multiple directories, sub directories, and files on every level. Some directories and files must contain non-ascii characters Test steps Go to your private files Click on add Navigate to each WebDAV repository From each of them, make sure : You can navigate in every directory You can download any file Files downloaded are correctly saved (check their content)