Forced logout and random disconnects?

After taking a break from maplestory for various reasons, and playing JMS a little when I was online, I decided to boot up Global today. At first I got in, and disconnected immediately, without any disconnection mentioned, and returned to the login screen I tried logging in again, got to character select, and then disconnected from the client. I got in again after that, was on for ehh....3 minutes, and then disconnected to the login screen as before, without any message. I tried about 5 more times with both versions of disconnecting. Any idea what could be causing this?