Linking your Trion Worlds account with a console is not available for this game.

whats going on now that I can get on 16 hours after launch

I had the same issue if I was on the Trion account page. But when I went to the www.defiance.com/linked page it worked like a charm. Not sure what difference that made.

Had an issue as well. I logged out then back in and re entered my code seemed to work then.

Ive tried to enter my code multiple times and all it says is invalid.