Hey, I have been chasing down an issue where only one person can be connected to me at a time. I ended up calling take2interactive and had a pleasent experience. Not to mention helpful, they all speak with a heavy french/european accent. Well they told me the ports needed to be opened. Clients 2056, 2075-2079, 2081, 13139 Hosts (along with those above) 6500 Hopefully this will help everyone. If it does, perhaps a sticky is in order?