There is some good news and some bad news. The good news is that we've figured out how to fix the connection issues. The bad news is that it's a complicated fix that has the potential to break a lot of other things, so it's going to take us few days to fix it and test it thoroughly to ensure we don't create more problems by fixing this one.

In the meantime we suggest using either the Chrome browser on Windows or the Safari browser on Mac if you're having troubles, as they do not appear to be suffering from either disconnection problems or lag.

Our deepest apologies for the trouble this is causing people. We're working very hard to get it fixed in Firefox and Internet Explorer, and will get those fixes up as soon as we safely can.