Can't log in. Unable to complete version check.

[Guesswhat]

Windows 10, not steam version.

Whenever I try to start the game I get this message:

---------------------------
FFXIV Launcher Error
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Unable to complete version check.
[30410][30607][10009][19900][12175]
---------------------------
OK
---------------------------

Can't play the game because of this. How can this be fixed?

Edit. This is after I type in username + password + one time pass and click LOGIN. Looks like it tries something after that, then gives me above message.
EIT2. It's from the Windows launcher.

[Thukoolo]

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

I do apologize for any inconvenience experienced when trying to play Final Fantasy XIV. Have you attempted to delete the patch folder from the device? (My Documents > My Games > FINAL FANTASY XIV > Downloads > Delete patch folder)

If you are still experiencing an issue, please be sure to follow these troubleshooting steps below:
- Make sure Internet Explorer/Microsoft Edge is up to date.
- Disable all programs/overlays running in the background. (Found in Task Manager)
- Make sure your anti-virus software has the appropriate exceptions for Final Fantasy XIV.

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

[Guesswhat]

Thanks, I got to fix it.
In case anyone else have the same problem here is how I fixed it:
The problem was that only TLS 1.3 and TLS 1.2 were enabled on my computer. I had to enable 1.1 and 1.0. Aftrer that the launcher started downloading updates.

Here is a quote from steam forum with the same problem

1º - HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings\WinHttp -You only need to click on the WinHTTP folder, not anything inside it. Right click on 'DefaultSecureProtocols' and modify. Change a00 to a80.
2º - HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Internet Settings\WinHttp -Same as 1. this is the 32bit folder.
3º - HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings -This Registry entry is titled 'SecureProtocols' This might already be set at a80.
4º - HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Internet Settings -Same as 3. As soon as you make all 4 changes, you should be able to login to the launcher, no restart required.

Also open control panel -> Internet options -> Advanced ->
Under security, have TLS 1.0 and 1.1 checked.
Could help to restore default settings too (click the "Reset..." button, or the "Resore advanced settings").

[Darneltia]

Greetings fellow Eorzean,

We are happy to hear that you were able to resolve this issue and thank you for the helpful information.

This thread will be moved to the 'Closed Concerns' sub forum as a result. We hope that you can continue to enjoy Final Fantasy XIV!

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