Error Code [11006] [20641] [20643]

[Leaino]

The final fantasy launcher isn't working. When I tried to log on to XIV yesterday it had the error saying there was an update, so in order to deal with it I uninstalled the game. However when i tried to reinstall it, these errors started to pop up and making impossible for me to reinstall. I've tried deleting the folders in case there was a corrupted file in there, but it still showed the errors. If anyone knows how to fix this that would be great.

[Honisixacodow]

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

We apologize for any inconvenience experienced when trying to play Final Fantasy XIV. We would like to suggest the following troubleshooting:

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

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