I had this problem and it happened when I used a macro to gear swap. Go to C:/ My Documents and look for FFXIV. Delete your User File. The game will recreate one when you log in again. You WILL lose your UI settings and Macros. Redo your macros, make a copy of a clean version. This completely solved my 30002 problem, which had nothing to do with my connection even thou it said Timed Out.