VAN 6 can be annoying, however I have found a permanent fix and temporary fix. The most likely cause is your antivirus' ransomware protection blocking Vanguard. You can solve this by allowing C:\\Program Files\\Riot Games\\Riot Vanguard\\vgc.exe through. It depends on your antivirus, Google is your friend for this one. To temporarily fix VAN 6, simply follow these steps. Press the Windows Key and R at the same time. Type in services.msc and press enter. Scroll down until you see vgc, and then right-click and press restart. If restart is grayed out press start. Now you can reload VALORANT and be on your way to (hopefully) frag out. Hope this helped!