I have seen multiple posts about this, including a Ubisoft rep saying that this has been fixed. It has not. I bought the game yesterday, and still cannot log in regardless of the method I try. I will be returning this game if it does not get patched, or at least a stopgap fix is released before my return period is up.
I welcome any response from Ubisoft about a fix, as well as anyone else still getting this issue.

