So my friend is trying to connect on my Ultimate server 1.0.1. He can't seem to connect and he is the only one with a Mac. I searched on Google and a thread told me to remove Portal Gun and Gravi Gun. However, it didn't fix the problem. Whenever he connects, it says "End of Stream" or "Internal exception java.net.socketexception connection reset". He did send me the pastebin from the console during the connection to the server. We are using hamachi and I tried portforwarding the server, still didn't work. He has Java 7 updated.
http://pastebin.com/yuAuZtXj Before removing Portal Gun & Gravi Gun
http://pastebin.com/6yasxk4f After removing them
http://pastebin.com/yuAuZtXj Before removing Portal Gun & Gravi Gun
http://pastebin.com/6yasxk4f After removing them