Hey,
maybe one of the following resources helps you on how to correctly configure your webserver to fully support the required WebDAV requirements of ownCloud?
https://doc.owncloud.com/server/10.3/user_manual/files/access_webdav.html#known-problems
If you encounter the following scenario:
You can access your owncloud web interface
The owncloud sync client as well as WebDAV (via some WebDAV client, or a direct access in a browser via http://yourowncloud/remote.php/webdav ) aren’t working (typically you will see a 401/403/405 error in the logs)
You’re getting a message “Your web server is not yet properly setup to allow files synchronization because the WebDAV interface seems to be broken. Please double check the installation guides.”
Ther…