I tried playing multiplayer recently with a friend, on the same LAN. At the beginning of each turn, the AI remains pending for several minutes and ships will not move. We cannot end the turn or save the game until the AI is ready.

We have both tried hosting and started multiple games. Neither makes a difference.

Same for us. Two in europe, one in russia, two in south east asia. And scince turn 40-50 we have 2-3 minutes turns and desyncs. What we can do? We even ready to rent a dedicated server and setup a game server if only it would possible.