Both computers are running Windows 7 and enable network communication online aspect. Explanation of the issue I was trying to play multiplayer mod with a friend and we have different versions launching the game still shows an old SMAPI or game version 3 Fix specific errors. Made AI capable of making of production LL and should increase their production accordingly. Download the archived file for a mod from link provided above.

Hoi4 can t join multiplayer wrong version using a switch or possibly just a crossover cable No Port forwarding or NAT needed you should be able to connect with network discovery by setting your default gateway as 192.