SQUARE ENIX Tech Support Response (Same cookie cutter response as on other thread posts)
he issue you are describing is most associated with interference with the game data. Most of the time, it results from certain security/privacy changes on Internet Explorer. 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.
Additionally, an official Lodestone article was posted in regards to DDoS attacks on our servers that may have caused the connection issue you are referring to and may not have affected all players equally. Since April 14, the issue was resolved but we have provided further troubleshooting below in case you are still experiencing this issue.
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.
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 for these steps, as that is a different Internet platform.
Once Internet Explorer is up-to-date, please open the Internet Explorer browser’s “Internet Options” by clicking on the “Tools” option (or type Alt+X), then click on the “Internet options” setting. Please adjust the following settings:
- Under the General tab, please delete ALL browsing history by clicking on the “Delete…” button, then selecting all of the options and clicking “Delete” again.
- Under the Security tab, please move the slider to the lowest possible setting, or no higher than “Medium.”
- Under the Privacy tab, look for the Settings section and click on “Advanced,” then Accept First-party Cookies and Third-party Cookies, then check the box that says, “Always allow session cookies” and click OK.
- Under the Advanced tab, look for the Settings section and scroll towards the bottom of the list and check on the setting under Security for “Allow software to run or install even if the signature is invalid.”
- Under the same section, make sure that all ‘Use TLS’ options (EXCEPT SSL 3.0) are checked. [Use SSL 3.0 should be unchecked]
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.” 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.
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,
Alex
SQUARE ENIX Customer Support