I just ran into the same issue. My game was running perfectly fine until last night when I attempted to log in. Mind you, I run the login tab on Google Chrome with a refresher plugin as well. My cookies are enabled and I don't run the page on a private browser mode. My internet is working just fine (Everything else is working, other websites, skype, youtube, the site login) but for some odd reason, I can't log into the game its self. I've tried restarting my comp, restarting my browser, checking my cookies, restarting the game, and nothing is working. I just keep getting the "Failed to connect to main server." Error each time I try. Everything was working perfectly before last night ;n; If anyone has found a fix to it, that'd be very much appreciative. <3