Never needed to test this until yesterday when I needed to upload 3 GB of files to a server (home office to datacenter) that had no possibility of using a browser to download from Passport Advantage.
What I did was the following:
1 - Log on passport advantage (using my laptop) and looked for the desired software
2 - I changed the download option for https
3 - When I started downloading the file I copied the URL
4 - The URL is complex like this one: (i changed some characteres)
I type wget on linux terminal and pasted the url
The download was done smoothly.