System Error: -2146697211

This launcher has been a curse for years. Ignoring all the other issues that I stumbled my way through, the most recent problem comes shortly after updating to the 6.55 patch that released last week. The patch installed fine, I was able to log in and play for a little bit. Now, when I open the launcher, both normally and in admin mode I get this little text pop up reading:

A System Error Has Occurred: -2146697211.
HTTPS System Error.

I have tried a method of fixing it by going into Internet Options clearing the cache and browser history, setting the security zone to it's lowest, changing to allow for third party cookies, as well as the advanced options. Still the launcher persists with that warning. I am wired directly to the modem and the firmware for that has not changed and I have been able to play like normal before now. My antivirus is just the Microsoft Defender and FFXIV is allowed through the firewall. I am currently on Windows 11 Pro 23H2.

I would prefer not reinstalling the game again as that presented its own set or problems. Any assistance would be greatly appreciated.

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

The issue you are describing is most associated with interference with game data. Many actions can trigger this error, such as a slow internet connection, certain security/privacy changes on the default Internet browser, an application running in the background causing interference, use of a VPN or an odd connection (EG: schools or cafes), a possible virus detected on the device, many rapid payments at once, and numerous other actions.

We advise disabling any web browser extensions (EG: ad-blocker) and trying again. We also suggest resetting the connection (router/modem) you are using to connect to the Internet before trying again.

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 Router and leaving the power supply unplugged for 5-10 minutes.

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