Details:
I am attempting to return to FFXIV after quitting several months ago. I re-installed and am fully updated, but find that I am unable to stay connected to the game for more than a few minutes at max. I did not have any problems before I quit.

Steps:
1. Log in.
2. Wait between 10 seconds and 2 minutes. During this time the game plays fine: I can chat, I can interact with NPCs, I can interact with my inventory, change linkpearls, and change abilities and equipment.
3. "An error has occured on the game server. (30002)"

Date & Time: I have tried to play morning, day, and night PST. I cannot stay connected regardless of time.

Frequency: Always.

Platform: PC

PC Manufacturer & Model Number: Homebuilt.

Operating System: Windows 7

Graphics Card: Radeon HD 5870 x 2

ISP: Shaw Cable

Type of Internet Connection: Cable

Character Name: Shimazu Takahisa
Race: Roegadyn
World: Wutai

I can play other games without any trouble. I have entirely disabled my windows firewall, and I have forwarded the ports that I believe FFXIV makes use of on my router. I'm running out of ideas.