You are already connected to the server.

Describe the problem. Be as specific as possible!:
Sometimes when I log into maplestory, it doesn't load the channel that I want to connect to. After a couple minutes I get disconnected from the game. When I try to log back in, a window comes up saying either: "You are already connected to the server." or "This ID is already logged in or the server is under inspection."

 Images of problem

Its been nearly a day now since I've become locked out of three accounts. I've tried rebooting my computer, using a different computer, using a different ISP, I can log into other accounts. I've sent a ticket to Nexon, but my friends say I can't do anything besides wait for the next server maintainence.