Originally posted by Pippablwh:

I'm also having this problem - I have no problem getting into my own worlds, but when I try to join a friend's world or a server I'm disconnected instead of spawning into the world. I didn't have this issue until the latest update which really screws me over cos I was wanting to finally fight the bonemass in my friend's world

I have this same issue, my wife, has no problem joining any servers, yet I can't join any, same computers, net etc, no idea how to fix it either