It's random people at random times it seems academy. I cleared cache, adobe flash, even used another browser, still won't let me connect. I think the issue is the server going on and off at different times or having server splits for regions in which some can load it and others can not. It could be multiple issues such as computers overpinging the server, pointers not working right, regions and net connection, and more. Then again, that's what cb is for.
I am now on, however later it won't let me on again. Giving you an update. It's due to the MS lag, something that might need to be looked into for other issues also. If you're beyond a certain Ping for some servers they will not let you connect or will disconnect you, which sounds like the two most common complaints and when I did a ping test, those regions below 200 ping my friends could connect, those above 200 ping could not, which is based off of a series of causes. Cheers!