Completely unplayable lag. Looking for help.

In the middle of my gaming session, with no changes to cause it to my knowledge, my game is suddenly unplayable with the amount of lag that I've been experiencing for the last few days, Error 90006 being the most recent error code that I've received.

This lag is happening across my ENTIRE game and launcher, including the SE site for support, and yes even these forums (took maybe 30mins just to load this "Post New Thread").

While all this is happening, I run several ping tests to see if this issue is on my end, but I don't think it is because my internet speed is perfectly fine and fast with no interruptions or drops, and any other program or site that has nothing to do with SE is working as intended and loads as fast as expected, for example I can play other MMOs without any lag, so I am completely stumped and unsure what to do to fix this issue.

I have called my ISP only for them to tell me nothing is wrong, I've restarted my router/modem, restarted my computer, and my game to no success on fixing it.

Really frustrated that when I google the issue, none of the results come up with a solution that works for me (Unsure how to run as admin because I run it through Steam and Steam is already running all games as admin, and allowing it through Firewall but it already is allowed through being the main ones).

Thank you for reading this and I apologize for not knowing how to post results, first time using these forums and am obviously extremely frustrated, any help is much appreciated. <3

Good morning and thank you for posting in the Final Fantasy XIV Technical Support Forums,

We apologize for the delay in our response, please try the following troubleshooting steps:

- The game will use the Internet Explorer web browser to connect to the internet. Open Internet Explorer, then open the "Tools" setting, go to "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, 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

- 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.

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

Good afternoon and thank you for posting in the Final Fantasy XIV Technical Support Forums.

Due to no response from the original poster, this thread will be moved to 'Closed Concerns.' If anyone is still having this particular problem, please create a new thread and we will assist you in any way we can.

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