It might have been a software update or a system alert indicating a potential issue with your computer.
It might have been a software update or a system alert indicating a potential issue with your computer.
I was playing MvM during a fresh Windows setup (moved it to NVMe) when I suddenly lost access because something on my PC was interfering with VAC and I couldn't connect to any servers. After restarting, I confirmed the game files were intact but still nothing worked. Reinstalling Steam fixed everything. It seemed like only background processes were causing issues—no other programs running. I even disabled Asus' Armory crate from installing again, which helped. Everything now functions properly, though I’m puzzled about this unexpected problem. I recall it happened before on a laptop, but it was years ago. I don’t use mods or UI enhancements, just the standard Steam experience.