Mate there are someone playing from US or Canada but not EU. I think officially release will be tomorrow maybe you could get some errors on mp mode right now. Wait until tomorrow and try again anyway if there are some bugs or need to fix something patches comes in a week. After we can enjoy the game without the problems.
I only had this happen to me once and this was right before the game started other than that it's been working great for me. I just hope this doesn't start happening like all the problems with Homefront.