Socket Keeps Closing - Game Crashing

[RonPaulFTW]

Game has crashed 8 times tonight with this error. I haven't had this issue before.

java.lang.RuntimeException: java.net.SocketException: socket closed
at haven.Session$RWorker.run(Session.java:595)
Caused by: java.net.SocketException: socket closed
at java.net.DualStackPlainDatagramSocketImpl.socketReceiveOrPeekData(Native Method)
at java.net.DualStackPlainDatagramSocketImpl.receive0(Unknown Source)
at java.net.AbstractPlainDatagramSocketImpl.receive(Unknown Source)
at java.net.DatagramSocket.receive(Unknown Source)
at haven.Session$RWorker.run(Session.java:588)