Same problem here. First response I give here, but this is really ridiculous!
I bought this game end of March, haven't been able to play the game a single time.
I'm a network-engineer, so I work with computers, switches, routers and firewalls all day, so that's not the problem in this case....
The worst part of all of this is (in my opinion), the total lack of responses from Ubi themselves. If I would know, what the problem was, or what they're doing to fix this, I would feel okay with it. Now I just have to wait and see what happens and see all kinds of weird solutions passing by, none of them helping.
I know it won't help much, but I think Ubisoft should be ashamed of themselves, for releasing and NOT supporting a game.....