This game is so great to play with friends, but it has very unstable multiplayer.
For example, I've tried to play with my friend several times, and while we were playing, we were always getting message "Network out of sync". In spite of it, the game looked good, but it gives only approx. 5 minutes, then says "Player send bad command".
I use 2.2.5.5 version of both Stratagus and Wargus. 32-bit Windows.
Also, in previous versions I've used previous versions of this game at Linux, and there was another problem: I was able to play with only 1 friend, but it was okay. When second friend tried to connect, it seemed that all connections were broken, but there was no any error reports, so I was able to start the game and play alone. Not sure about now, but I can try to test this with some of my friends, if you need.
I will repeat it again: the game is great, so I hope you'll fix this as soon as possible.
All players should have the same version of stratagus/wargus.
If it is not that the problem,
can you give some info to reproduce the error ?