My Friend just bought minecraft for Mac. He has a Mac Mini (i5, 6 gb ram, and an around an AMD ~6000M laptop graphics) I've been trying to set up a server (which I think was successful) it shows 0/16 players and the motd as if its online, the log shows when I connect and leave so I think its working. I have forwarded the ports, opened my firewall, and given him the right ip (i think, external) But we thought it might be his computer so he tried to join a server with 150 people and got the same error ~connection refused or something along those lines. All we can think of is to update his macs java which is already up to date. Could it be his firewall? Anything Helps! Thanks guys