I don't know if this has been brought up or not. But if you keep getting 2002 error. Try disabling your firewall, and running FFXIV launcher as admin.

After you're in try connecting to other Data Centers, and vice versa. Watch the movie, clips. I believe there to be some kind of reconnect function at the start menu when you go from watching the movie back to the start menu screen that could help resolve some of the errors.

Im not sure on this 100%. I've had my share of 2002 errors but ive been able to get in and play the game.

I believe with everything going on they added additional ports to the game that may not be unblocked on your pc.

Good luck gamers.