Quote Originally Posted by SerephinaBlossom View Post
People got massed D/C before this happened so the problem lies outside of the 2002 error
This could be the reason. There was a hickup, people got massdisconnected and now they try to login again and the login servers are exhaused. The login servers can handle 21k people.

You can see the server status here:
https://na.finalfantasyxiv.com/lodestone/worldstatus/
https://is.xivup.com/adv


Cheers