Not just thrive!
But the web portal sucks. All you can do is basic stuff... Upload a file, Rip it, then add very basic stuff... Can't so color changing, crop or nothing in reg version... Its not worth using .we only tried it out to test if we could use onyx for our screen film printer that's downstairs. It was so cumbersome and annoying we gave up on that idea.
Everything should work just by the instructions... Try accessing it on your onyx computer, see if it's a port forwarding problem or something. Does onyx start up saying web server initiated?