Can make Tunnel Server but neither me or my friend can connet

[DeathViking666]

So I have a weird issue here....

I can create a tunnel server fine and it shows up in lobby when I go create game and advanced. Other people can even connect to it but it will say something about them having different files to me or something. 

So If I start a game on my tunnel server and then go up to the top to cnclobby it just doesn't show up for me. My friend in Australia also cannot see my game lobby.