I'm assuming it has something to do with the launch parameters. I never figured out how to do it. I just get the IP of the non-Chernarus server and use remote connect.
To lazy to read this: https://dayzmod.com/forum/index.php?/...yz-ns-modules/
Let me know if they have the answers you are looking for. The guy had a different error message but see if anyone said anything useful...