Because they are kids who have no idea how to do it and/or cannot access their routers, but don't dare to admit that on the forum.
Because you're to loving daft to see that's not the god damn problem.
Yes it is the problem.
No it isn't, like I've said three loving times before; It was working fine several days ago now the server has no ping.Quit saying it is port forwarding because it isn't the damn problem.
But clearly it isnt normal to work fine one day without having to port forward and the next day you must or you cant play.
uPnP is unrelieable and will sometimes randomly stop working, like your router has a bad day.
UPnP is unreliable. Restarting your router might help. Why is everybody so resistant to port forwarding though?
I liek waffles!