Wow... I just got my 5box hardware setup working, and I cant go a full level in the newbie zone without disconnecting all 5 characters. This is lame

Has anyone had any response from blizzard by email or anything?

Or better yet... has anyone gone problem free with 3+ clients? If so, what did you do to your network to prepare, other than opening up port 3724 to all 5 machines?