Please help me, error 90002

[HowdyHeyItsMaeven]

I keep having issues with error 90002, and rarely 90001. Is there anything I can do. Both me and my sibling play the game, but only I am having issues. We live in the same house and use the same wifi, is that causing the issue?

[Thampbayoyows]

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

The issue you are describing is most associated with interference with the game data. It can be a result from certain security/privacy changes on Microsoft Edge. Other times, it occurs when an application running in the background causes interference, such as anti-virus software, firewalls, media players, web browsers, communications software, etc.

Please make sure all background applications (including anti-virus programs such as Norton, Kaspersky, Windows Defender, etc.) have been disabled and/or closed to minimize game interference before attempting to log in.

You can also try Right-Clicking on the FFXIV launcher icon and select “Run as Administrator.” This option can also be set permanently by Right-Clicking on the FFXIV launcher icon, selecting Properties, then under the Compatibility tab, check the box that says “Run this program as an administrator” and clicking OK.

Within Microsoft Edge, click the "Settings" option on the top right of the browser (under the three dots shown) and go to "Privacy, Search and Services" and go to the "Tracking Prevention" section. Make sure it is turned on and select the "Balanced" option.

Additionally, if any settings have been changed overall, it is best to keep things at default which you can perform manually by using the "Reset Settings" option under the "Settings" tab. Lastly, please ensure that Microsoft Edge is up to date by using the "Settings" > "About Microsoft Edge" option near the bottom left.

If the suggestions provided above do not resolve the issue, there may be a communication error.

Check the following Port Ranges on your router/modem to ensure that the following Port Ranges have been opened/forwarded/triggered:
▼TCP
54992 through 54994,
55006 through 55007,
55021 through 55040

*You may learn how to do this by visiting http://www.portforward.com/
Find your specific router's brand and model number from the 'List of Routers' and you will be provided a step-by-step guide on how to access these port settings.
Otherwise, your ISP may forward these ports for you.*

If you have properly configured your router, and you are still experiencing these issues, our next suggestion is to bypass the router, and connect your computer directly to your modem. Please ensure that you power down both the modem and the computer for at least five minutes before attempting to connect to FINAL FANTASY XIV.

If you continue to receive these same errors when you are connected directly to the modem, then the problem lies with your ISP. We would recommend contacting your provider and advising them that one or more of the ports previously provided to you are being blocked or filtered, and that you do need access on these ports.

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