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Incredibly frustrating because I'm not entirely sure what's caused the issue. These are multiple ways that can be used to fix FFXIV’s unable to complete Version check (boot error) in 2021.
Now, launch the game and see if the error is fixed or not. Once done, save all the changes and restart the PC. In the new window, you will have to select to Turn off Windows Defender Firewall for both Private and Public network settings. In the left side menu, you will have to click on ‘Turn Windows Defender Firewall On or OFF’. In the new window, click on Windows Defender Firewall. Don’t know how to disbale it? Well, follow the below-mentioned steps: The last method that we have for you to fix the FFXIV boot error requires you to turn off the Firewall on your PC.
Once done, launch the game to see if the error remain remains. Verify the Integrity of Game Cache (Steam). Disconnect your device from the internet. To check your internet connection, follow the below mentioned steps: If the server is up and you are still facing an FF14 boot error on your device then it is likely that this could be happening due to your poor internet connection. To check server status, you will have to visit either the official Twitter handle of the game or a third-party site called, Downdetector. So, before you apply any solution, check out the server status of FFXIV first. There are chances that you might be encountering this error because of a server issue. Now save the changes and launch the game to check if the error is fixed or not. Repeat the same steps for B4EulaAgreement. Once found, change its value from 0 to 1. Once opened, locate BootVersionCheckMode. Once located, right-click on it and then select Open with Notepad. Once you get to the game folder locate the FFXIV_BOOT file. There, you will have to navigate FFXIV_Boot.file. Go to User>Documents>My Games > FFXIV – A Realm Reborn Folder.