When I click the link I’m returned to the login page. Why can’t I download the bundle?
Please log out and log in again.
Then go to the download link and right-click on the link (as opposed to regular clicking).
Choose Save link as… (or something similar depending on your browser). Then save the link to your desktop.
The download could take quite some time (up to several hours) so be sure to allow it to finish. You cannot download the zip file directly to a mobile device (phone, iPad) because of the size of the file.