I just tried to load an instance on an entirely different character and server.

First try was Tweety Bird, on Moogle when loading Main Questline Instance: The Lominsan Way. Upon clicking to load instance, error 9000 server connection lost
Second try was on Putty Kat on Balmung when loading the Class quest instance for MRD 30. Upon clicking to load instance, error 9000 server connection lost.

Now I receive cannot connect to server error when trying to relog in.