I'm not aware of any change with my router or connection at all. And I don't have a program that runs every hour either. I even tried closing as many applications as possible to see if one of them was causing the issue. This was fairly easy to do, because I only just recently built this PC with a fresh copy of Windows 8 (updated to 8.1), and I haven't installed many programs yet.

This morning I decided to remove the new GTX 760 and put my old GT 430 back in. It seemed to play FFXIV with no problem. And after reinstalling the GTX 760 again, it seemed that everything was magically working as it should. Soon after, however, I got the 90000 error for the first time ever at about 9:06am. Then at about 9:52am I once again had the same problem as in my original post. If I were in Vegas right now I would bet money that this will occur again at 10:52am, and every hour after.

As you can see, the time of this occurrance has changed from 43 minutes into the hour to 52 minutes into the hour. The only cause for this change that I can think of would be due to the switching of graphics cards. Perhaps the change in time coincides with the time I reinstalled the GTX 760? Which makes me wonder if the graphics card is really issue here.

It just doesn't make sense to me though. Visually, the graphics card appears to be working amazingly, and nothing seems wrong with my client.... To me, it's just the server that is failing to update my position or recognize when I'm using abilities, etc. I can't understand why this happens exactly every hour though, or why it does it with my new graphics card and not my old one... SO frustrating.

I guess I'm just really dumb when it comes to this stuff.