Network Communication Error 0.13.1

[Condorscondor]

When trying to join a multiplayer server using the new (pretty awesome) Browser, i get a notice saying "could not establish network communication with server" i used to get this when trying to connect directly via IP. however 3 other people were able to connect to the same server with no issues. all on version 0.13.1. so it works for others, why isn't it working for me? if there is a work around i would love to hear it. and if there isn't i would just like to know why this is happening. thanks in advance!