Ok So I was having this problem for the first day of early access, I would log and the start button was greyed out. After about a minute the 2002 error would show up and force me to close the client.

I've been using a work around, using a VPN (Spotflux) in order to access the game. With this I don't have any issues besides the servers being full from 2 PM - 11 PM CST and the dreaded 1017 "World full error"

I'm just wondering if Square Enix is planning to address this issue with the 2002 error or if there is something I can do myself to correct this problem so I'm not forced to use a vpn to play.