Bonsoir donc voici ce que je viens de lire :
4 hours ago by Snow
Hello hunters,
Just a quick statement. We know the servers are not working properly at the moment. We're working on a solution to address this. Stay tuned here for more information as we update. In the mean time, many of you will not be able to connect at all, and even if you are able to you will not be able to create a room.
Please bear with us as we find and execute a solution!
--
Snow
Source : http://www.capcom-unity.com/monster_hunter/go/thread/view/7451/28192039/Connection_Issues?pg=1
Merci de votre attention.