This may happen due to a significant lag or pocket loss between the user and the server. See Also: 4 Ways to Fix FFXIV Unable to Download Patch Files What Causes Error 90002? The causes of this error vary, and respectively one finds the solution. However, this recent error has been a nuisance to die-hard gamers. The game saw its release to a real wide audience with a massively positive response. It is commonly reported that this error did not appear initially. The error interrupts the interface as the users are playing this game. It is also known as ffxiv connection with server lost.
3.2 Solution 2: Switching To Google DNS.
