Monster Hunter Freedom Unite (MHFU)

[tywald]

Try turning off your firewall, your friend should do the same. Fast memory should be turned off as well because it prevents you from playing 3-4man parties. Each individual has to do this.

If you have mcafee, AVG turn them off as well, has helped for some people. Any software that can block connections should be turned off. You can configure them but if it works when you turn them off then you know where the problem is