I have the same problems with saving. If I play alone, I can play for an hour or so, before I get kicked out. So have to save myself a few times per hour. Because if I then use the log out save, I can't get in. So it's literally four steps forward and one step back if I get kicked out.
And I can't play on my save game or automatically saved save games with friends. If someone joins me, the game will stop and kicks me out within the ten minutes. I then can pay alone, but get kicked out of the game even more often and have to save myself every minutes to lose the less of my own game.