ZM Crash

Since 3 patches ago every time that I try to play a game of ZM with some friends I will be able to play a couple rounds but never get as far as 3 rounds in. Once I get to that point I will receive a "crossfire send error report" and the game will just close down. The same thing happens to my friend who lives close to me. We can both play Venice fine though, except me. When I tried out Venice I was fine up until the final round and boss came out and he came after me and hit me once and I got the error almost instantly... Can anyone help me out on why or how this is happening?..