I too am having the same problem on LAN games. After the last beta update, it doesn't seem to crash as often, but me and my brother cannot finish a game on LAN. We usually play on med/large maps (random) and we like to turtle a bit and tech up, no problems early on, but then when we start to go teir 8 in research we seem to loose sync. This is very annoying as we have wasted several hours playing and have not been able to finish a game. Is there anythings anyone knows we can do?