2011-08-07 GMS Outage

There is no "Master" Login server, but you can refer to the Authentication Server as such if that is what you mean. Basically, the primary purpose of the Authentication Server is to generate a string value for your session (sort of like a temporary cookie) so that your client is identified by the Login Server with your specific account. There are multiple stages in which your client will check this Authentication Server again to make sure that your key is valid as to make sure you're not trying to log-in erroneously. This whole system is merely a way to allow you to launch via the website and then add a road block for pizza slices to upgrade. There is no "PIC" server and the reason why we're getting that message is probably because their root database which stores all the accounts that were ever registered at nexon.net is offline or got rolled-back, or they made it so that you can't enter the game yet. Of course, they may be using this as an excuse to "boost" security with your account and re-register your pic & pin.