PC

wired

None

All suggested methods

Ensure that the latest version of Internet Explorer is installed on your PC (even if you don't use Internet Explorer). Please do not use Microsoft Edge, as that is a different Internet platform. Once Internet Explorer is up-to-date, please open the IE browser's "Tools" menu, select "Internet Options" and adjust the following settings:
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, please move the slider to the lowest possible settings or to "Allow All 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."
Go to the "Compatibility" tab, and change the compatibility mode to "Windows 7."
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."

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.