I'm sorry if a topic similar to this one was opened, but i can't find it.
I'm using windows 7 ultimate 32 bits, and when my brother is copying a DVD.iso from my computer, the network on my pc just simply stops, and the file transfer to. there are no error messages showing up,i can't connect to the internet and i can't even see my brothes computer. The cables are okay, the internet is fine. After restarting the network on my pc is back to normal.