Iv noticed ever since I got my new computer with windows 8.1 when I run the host from a .exe built version of the game it causes the clients multiple errors when they try join. These errors do not occur when you run the host within the unity engine? I know for a fact I don’t get this problem with windows 7.
Save yourself the time to figure this out and instead use the new networking solution of Unity or any other. The old version with Network class and NetworkView is no longer the current one and won’t get fixes.