Happening here as well. It happened a couple of times last night but I had always been able to get back in after a couple tries. 10+ So far and 90002 every time.

Time: 6:45 p.m. cst
Frequency: Every time
World name: Ultros
Character name: X'ahmyn Sirvat
Retainer name: NA
NPC name: NA
Monster name: NA
Class/Level: Black Mage/61
Party or solo: Solo
In-game time: NA
Area and coordinates: Southern Thanalan unsure of coordinates.
Housing: NA
Steps:*
1. Attempted, like a dummy, to enter the blm lvl 60 instance. Cutscene plays. 90002 error occurs while attempting to load instance.
2. Log back in, click on character.
3. Wait for queue of ~500 only to get 90002 error again while attempting to load in.
<*Add more steps if necessary>

Connection Specs
- Type of internet connection/provider: Spectrum High Speed Internet
- Modem maker/model number: Aris

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