Frequent random 90001 and 90002 errors in certain zones.

Date & Time: Completely randomly since Patch 4.2 (around 4-5 months ago)
Frequency: Random, but maybe 3-4 times a day depending on zone.
World name: Ultros
Character name: Emin Thonal
Class/Level: Any
Party or solo: Both
In-game time: At all times. I've documented to see if its a time issue, it isn't.
Area and coordinates: ONLY the following zones:
Shirogane (both outside and in housing) - Randomly.
Squadron barracks - Randomly. (Rare)
Ridorana lighthouse - 90k as soon as i zone in 100% of the time.

Housing: Any shirogane housing.

Steps:
1. Stand in shirogane (afk, tabbed in, active, crafting, talking. Activity doesn't matter)
2. Get error 90001, or 90002
3. Have to relog in (character logs out within 10 seconds every time)

*Add more steps if necessary

Info: I've tested multiple things, and it has persisted over a whole computer change. I'm not sure what is causing it as, at first, i thought it may be my ISP messing up, gave them a call, checked the connections and pings, nothing out of the ordinary.
Once i realised it's only in CERTAIN ZONES, i was trying to test multiple things in those zones to see if one of those is causing it. (An effect of some kind?)

If there's some effect or code only used in Shirogane and Ridorana, that may be it.
In the last 3 or 4 months i have never 90k'd outside of those two and the limsa GC. If this info can help you guys find anything i'll be glad.



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FINAL FANTASY XIV - A Realm Reborn C:\Program Files (x86)\SquareEnix
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Salutations, Emin Thonal!

Thank you for your patience while your concern was being investigated by the development team, and we apologize for the inconvenience this has caused you. Unfortunately, after investigating your concern, the issue could not be replicated, so the development recommended that you try reinstalling your game client to see if it resolves the problem. If you continue to experience issues after reinstalling the game, please submit another report, and we will make sure to escalate your report to be investigated further. Thank you again for your patience and understanding!

FINAL FANTASY XIV Support Team