This just started today. Every time I have got on today, everything was as it should be. Everything was working fine, nothing bad or unusual was happening. And then... I got kicked off. I got the error message you receive if you move to a different Internet location. You know, the one about IP address change. I though nothing of it at first, so I logged back on. Sure enough, half an hour later, I got booted again. And again. The last one happened 10 minutes ago. I'm not sure if it's something with the site or if it's just a bug, but it is kind of annoying. And I'm also not sure if something like this was already reported or anything and I just didn't see. But I'm on my high school's Internet, and I haven't gone to a different source. So... yeah. It might just be the school, but I thought I should say something just in case.

You can go to Account -> Settings and disable the IP safeguard. It will no longer kick you off if your IP Address changes.