You should check your firewall/antivirus software maybe there is a problem.
Perhaps your ISP is blocking some ports... Check other software with 10308 port. For example run uTorrent on 10308 port and check it with this site: http://www.utorrent.com/testport?port=10308
But if the server side will have modified export.lua (not match the original file) and client will have the same copy of modified export.lua then everything will be ok? Right?
You can fly with labales, you can fly with external views, you can even fly in arcade mode but there are some guys who wants to fly "as real as it gets".
I want to have choice.