Disconnecting from Server!

I have a brand new XPS Studio 16 laptop, with windows 7, and 64 bit. I just bought a new Wireless N Netgear router that works perfectly, however after i get past all the buggy junk in the patch and mcafee virus detection i load the game and can play for like five mins before it says i have disconnected from server. The buddy server goes down then it pops up an error that says i have disconnected. When i click Ok button it crashes the game. ive tried reinstalling and checking router functions. Perphaps Z8 is still having problems with Windows 7 compadibility? Please help me with this problem!