Problems with the network game. (Hearts of Iron 4)

I can't play online with someone, always some bugs, if you come to me then after some time begins to write what otstavat friend, even though everything is fine, and not otstaet it. If I go to a friend, you do not want to run the time I have. And with all with whom I played(with two). If anything, I have a license, although pirates was the same. The Internet at me is not bad, 40 Mbit/s. For all the games online enough(my ping is usually 50-60). Help who knows the answer and who it was also