Well, now I am getting this problem. As many of you know me, I did not pirate this game first of all.
I have:
-Tried restarting my computer plenty of times
-Verified the game cache 3 times
-Uninstalled NW and reinstalled NW
Also:
-When I look at my "Favorites" server list, they are all shown, with the people that are in there, but whenever I click on any of them, i get the message "Incorrect Authorization Key".
-When I look at the servers through the "Internet" server list, there is only like 15 servers that appear, and if I try to join any of them, I join and am immediately kicked from the server.
This has never happened to me before, so I'm getting worried.
I guess it fixed itself over time.
Locked.