Error core 90k, followed by error code 5003 (October 15, 2013, 5:20pm Eastern)

[Amiabelle]

Time: 5:20pm Eastern
Frequency: one time
World name: Famfrit
Character name: Schelle Sommers
NPC name: Not applicable
Monster name: Not sure, it was whatever comes up in MQ when you use the smouldering coal
Class/Level: Schelle was on Arcanist, level 25
Party or solo: She was solo
In-game time: I have no idea. It was night.
Area and coordinates: Somewhere in Western Than, near where the rat-people are, on the other side of the bridge
Steps:
1.Fight, blackout
2.Error code 90,000
3.Error code authentication issue, code 5003
4.Have to do a ctrl/alt/del in order to get the game to stop running (it was just a black screen for 30+ seconds)

[AsteriaOdina]

I had the same... but on my PS3

Time: somewhen around 3PM and 9PM CET
Frequency: once each
World name: Phoenix
Character name: Asteria Odina
NPC name: None
Monster name: non for 3PM, no clue for the other anymore
Class/Level: Dragoon Lv35/36
Party or solo: 3PM: solo, 9PM: party
In-game time: 3PM-ish, 9PM-ish
Area and coordinates: I don't know anymore
Steps:
1. at 3PM: walking to destination (by foot not on chocobo); 9PM fighting monsters
2. I don't know about error codes anymore but showed the following both times: Authentification error, disconnected from server message, black screen (no loading sign, music, whatsoever)
3. I forced the game with controller's "Quit Game" to quit but instead my PS3 beeped 3 times and restarted itself (usually QG brings you back into PS3 menu)

[Quanta]

Time: 2:15pm Eastern, 5:15pm Eastern
Frequency: Twice
World name: Excalibur
Character name: Quanita Starfire
NPC name: Not applicable
Monster name: Not applicable
Class/Level: 50 Summoner
Party or solo: Party
In-game time: No idea
Area and coordinates: In Wineport first time, inside Binding Coil the second time
Steps:
1.No real steps, it just happened without warning. First time, it was standing in Wineport getting ready to enter BC; second time was in the middle of Turn 4. This also happened to everyone in my group at least once throughout the course of the last 4 hours.

[xnonamex]

Time: around 23:00 and ~20:00-21:00 CET
Frequency: two times
World name: Odin
Character name: Baltais Elfs
NPC name: Not applicable
Monster name: Tonberry King, skeletons in wanderers palace (don't remember their name)
Class/Level: Dragoon 50
Party or solo: Party
In-game time: don't know
Area and coordinates: once in Wanderers Palace on the last boss, other in wanderers palace on the skeletons after 2nd boss.
Steps:
1.Tonberry fight. Fight Skeletons
2.Error code 90,000
3.Authentification error
4.Game exits

I know that bunch of ppl got DC'ed when we were putting a party together for Titan

[Hankbuster]

Time: Started 11:00 AM PST
Frequency: 4 Times
World name: Goblin
Character name: Chu Li
NPC name: Not applicable
Monster name: Not applicable
Class/Level: 50 Summoner
Party or solo: Party
In-game time: No idea
Area and coordinates: U'dahl Marketboard area
Steps:
1.Happening randomly

[MLew0032]

Time: 5:14 PM CST
Frequency: 2 Times
World Name: Hyperion
Character Name: Coralyn Myr
NPC Name: N/A
Monster Name: N/A
Class/Level: 36 Dragoon
Party or Solo: Solo
In-game time: Unsure
Area and Coordinates: Northern Thanalan, Ceruleam Processing Plant next to Merchant & Mender
Steps: Stood in town talking via Free Company chat

[Hekla]

Time: 3:37 PM PDT
Frequency: Twice (Do not have time information for earlier occurrence)
World name: Cactuar
Character name: Hekla Tephra
NPC name: Market Board
Monster name: N/A
Class/Level: MIN Lv.50
Party or solo: Solo
In-game time: Between 4AM-5AM
Area and coordinates: Market Board in Old Gridania
Steps:
1. Searched 'earth shard'
2. Checked pricing history
3. Error 90000
4. Error code authentication issue, code 5003

[Kayvindra]

Time: 6:43pm Eastern and another time earlier in the day
Frequency: two times so far
World name: Hyperion
Character name: Kayvindra Lyra
NPC name: Not applicable
Monster name: Not aaplicable
Class/Level: Bard level 50
Party or solo: party
In-game time: just before 10am eorzea time
Area and coordinates: Old Gridania at summoning bell but not clicked on npc, just standing there
Steps:
1. standing there typing
2.Error code 90,000
3.Error code authentication issue, code 5003
4. exits client

[Tashigi]

Time: 3:48 PM PST and twice before then.
Frequency: Four times thus far.
World name: Cactuar
Character name: Nico Robin
NPC name: Not applicable
Monster name: Not aaplicable
Class/Level: Blacksmith 42
Party or solo: Solo was the most recent (Party for all others)
In-game time: Not sure
Area and coordinates: Limsa crystal, standing by it.
Steps:
1. Crafting or doing nothing and when in party (Healing) then screen goes black.
2. Error code 90,000
3. Error code authentication issue, code 5003 upon clicking or making any selection or if left idle too long.
4. Client closes completely (Including launcher).

[Cylla]

Time: first time don't remember the time, 2nd time was around 6:30pm est
Frequency: Twice
World name: Hyperion
Character name: Cylla Nightsong
NPC name: Not applicable
Monster name: Both times was in WP/AK
Class/Level: WHM 50
Party or solo: Party
In-game time: NA
Area and coordinates: NA - but again was in WP/AK when it happened
Steps:
1.Just zoning in to WP happened first time, 2nd time was after the first boss fight in AK
2.Error code 90,000
3.Error code authentication issue, code 5003
4.Game closes out and have to re-log back in