If you’re using a wired connection, try connecting to your network wirelessly Or.Perhaps the network you’re using is not working properly so you see the Unable to Complete Version Check error. Step 5: Save the changes and test your issue. Step 4: Change the value of BootVersionCheckMode to 1. Step 3: Open the FFXIV_BOOT.cfg file with Notepad (or any other text editor you’d like to use). Step 2: Go to Documents > My Games > FINAL FANTASY XIV – A Realm Reborn Step 1: Press the Win and R keys on your keyboard, then enter: %userprofile%