Error 90001 crashes on oceana servers after 7.3 patch

[Draconis21]

I have been trying to playing on the oceana servers after the 7.3 patch but now I get constant error 90001 and 90002 crashes after a few minutes of playing, constantly. Nothing has changed on my computer. Just patch 7.3. Was fine before but after it has constant crashing. I can play fine without crashes on the USA servers but I dislike the 300+ ping that I have to deal with there, but oceana is now unplayable

[Katsubaka]

Hello, my friend is also having this issue. He will randomly disconnect between 5-30mins. Sometimes not letting him in for a few minutes. Also started after 7.3. He is with Dodo ISP, which one do you use? I myself use Exetel and play fine

[Qzthlxfpwm]

Good morning! Thank you for posting in the Final Fantasy XIV Technical Support Forums.

Open the control panel of the PC and go to ‘Network and Internet’. Once there select ‘Internet Options’
- Under the "General" tab, please delete ALL browser history.
- Under the "Security" tab, please move the slider to the lowest possible settings or no higher than "Medium"
- Under the "Privacy" tab, click “Advanced” and select ‘Accept’ under both First Party and Third Party Cookies.
- Under the "Advanced" tab, please make sure that "Allow software to run or install even if signature is invalid" is CHECKED.
- Make sure that all SSL and TLS (EXCEPT SSL 3.0) are CHECKED. [SSL 3.0 should be UNCHECKED]
- Hit "Apply" to save the settings, and then "OK, to close the Internet Options menu.
- Right-Click on the FFXIV launcher icon and select "Properties"
- Hit "Apply", then "OK" to save the changes.
- Please RESTART your PC now. Once your PC has been restarted, Right-Click the FFXIV launcher icon once more and select "Run as Administrator"
*Make sure your fire wall or antivirus program is not interfering with the game

Lastly, check to see if the following port ranges are opened on your router. You can contact your ISP and request they open them for you
▼TCP
54992 through 54994,
55006 through 55007,
55021 through 55040

Try disabling background applications and do a clean boot by opening the task manager and selecting the “Start up” tab. Disable everything and then restart the PC.

Lastly, we suggest to power cycle the console and router by shutting down the PlayStation 5/Router and leaving the power supply unplugged for 5-10 minutes.
- Flush DNS: Within the "Command Prompt" of the device, please type the command "ipconfig /flushdns".
- Reset TCP/IP: Also within the Command Prompt, type the command "netsh int ip reset" and then restart the computer.
- Delete the Patch Folder: Navigate to the folder using this path This PC > Docs > My Games> FFXIV ARR > Downloads > FFXIV patch (Use for either the version update error or cannot download patch files error)

Then either rename or remove the folder, the next time FINAL FANTASY XIV is launched, the client will repair the folder.
- Change local DNS: Please try changing the local DNS server to 8.8.8.8 and 8.8.4.4
- Delete local files with corrupted character data, please note this will not delete the associated characters.

Thank you for visiting the Final Fantasy XIV Technical Support Forums!

[Alynta91]

I am also having the same problem and I play on PS5, and it only started happening after the patch. I will get disconnected every 15-30 minutes and it basically makes the game unplayable. There are other people that this is also happening to because people have posted it on FB.