Crazy ingame delays and error 90006

[L2DEE]

Since last evening game is very laggy and just disconnect me. Internet speed is good, also everything was fine in September and October. I already tried to reboot the router, this did not help, PC connected with LAN.
Internet speed: Download 50.51 Mbps, Upload 50.83 Mbps

Thank you for any help.

[Dynratygus]

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

How long have you been experiencing the connection issue? Is the Final Fantasy XIV game application allowed through the fire wall? Could you try changing the Internet Explorer settings? Open the IE browser, open the "Tools", 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"
- 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"

Thank you for visiting the Final Fantasy XIV Technical Support Forums

[L2DEE]

Hi Dynratygus.
I tried your solution, except compatibility, because I use steam version, so it looks a little bit harder to me. It not helped at all. But now I think what it can be related with my ISP, because Telegram and Reddit also works much worse then before. Anyway, thank you for helping me!