I was playing yesterday and when I got disconnected from the match (for the third time that day) I got this lovely message instead of the normal one: EasyAntiCheat: "connection timed out" (0006000143). I could not find one other post about that specific error code so I guess I am just special. I haven't done anything weird to the game files or touched the game folder since installing it. I brought the law to a 144 warlord just before I got that error. It must have been a Ubi dev lol.
I would suggest checking in with the support teams for any similar error messages. They can give you all the needed info about the error and why they may happen. You can reach them over at http://support.ubi.com