I have already had the game for a few days and still can't play the online mode. There's always, installation still running "and that every day, I've already uninstalled the game and reinstalled but it does not work (I play on Ps4 and have the game on CD).
Try going to "search for updates"
Click options on the game and check for updates.
Can you play all other games online? Do you have other games of ubisoft in which the online function runs without problems?
nothing helps you get the ubisoft app and write a ticket.
If you want we can play… I'll help you in the game.
Ps4 name: makl1005