Read through the thread, echoHam is crashing on Connect, running Mavericks like everyone else.
However, this is not a port issue at all. I downloaded EchoMac from source forge and it runs fine, and talks to my local repeater (tested PTT etc). So i know i don't have a network port issue of any kind. It is something weird in echoHam
PS: Downloaded echolink.exe (the PC executable) and ran it under Wine, and it too works fine, so it also confirms its not a ports issue. Its an echoHam issue of some sort.
How are you testing EchoHam, (Mountain Lion, Mavericks, wired connection, wireless connection).
Happy to help debug, have dev skills and all the usual dev tools.
cheers,
bammi