Your gameserver.opt shows this:
Under "#Where the gameserver will connect (this is default values)" in your auth.opt file, can you paste this line:
Both should be set to something else, like 4616 by default.
Are the server and the clients running on the same version?
Code:
S io.upload.port:4617
Code:
upload.gameserver.port: ?
Are the server and the clients running on the same version?