Unable To Load Characters (Trapped In 'Downloading Data" Screen)

Platform:
Windows 7 & Windows XP (Happens on 2 computers)

ISP:
U-Verse AT&T

Type of Internet Connection:
DSL

Internet Connection Speed:
4.89Mbps

Date & Time:
7:45 AM PDT

Frequency:
State how frequently the issue occurs. Please select from the following.
Always (Been trying to log on since it occurred)

Character Name:
Leocon
Kaitlen

Race:
Elvaan Male (Leocon)
Elvaan Female (Kaitlen)

World:
Siren

Main Job:
Paladin 99 (Leocon)
White Mage 99 (Kaitlen)

Support Job:
Warrior 49 (Leocon)
Black Mage 49 (Kaitlen)

Area and Coordinates:
Tavnazian Safehold (Home Point 1) (This is where I was zoning to)

Party or Solo:
I was in a party when trying to zone the first time.

NPC Name:
None

Monster Name:
None

Steps:
I was warping from Southern San d'Oria's Auction House Home Point to Home Point #1 in Tavnazia Safehold. Leocon got trapped in the "Downloading Data" screen and eventually the game threw up the error code "FFXI-3001". After a few more unsuccessful attempts I tried logging Leocon in on another PC (Windows XP) and was still getting stuck on the "Downloading Data" screen.

I then switched back to the original PC (Windows 7) and was able to log Leocon in and move him successfully to Sealion's Den, but now I cannot log my other character Kaitlen in on the Windows XP PC (she is also in Tavnazian Safehold). She had successfully zoned into Tavnazian Safehold before Leocon was unable to, but now she cannot get past "Downloading Data".