When we make servers, they do not appear

[When we make servers, they do not appear]

Me and mu friends like to make armory servers and then screw around. But now, whenever we make servers, they do not show up for anybody else? We used to do this all the time, but it does not work anymore. We use the host new session button to make the servers, but they do not show up. Help?

[Multiplayer servers for wasteland showing red crosses]

When I start up arma 2 oa and filter the word "wasteland" in, a bunch of slots for servers show up with red crosses to the left by where a green dot or yellow dot usually would be. I can connect to the servers with the red crosses and no names, maps, or hosts. The red cross servers will eventually scroll away and show usually 2 or 3 servers with 1-2 people in them. So why wont the servers with red crosses show up!