VPN/Teams/Outlook keeps failing to sign in at home or at work — fix it in 10 minutes by correcting Windows time (Windows 10/11)
Teams/Outlook keeps looping sign-in or VPN/SSO fails on Windows 10/11? Fix it in 10 minutes by correcting Windows time: enable Auto Time/Time Zone, Sync now, switch NTP server (time.google.com/time.nist.gov), set Windows Time (w32time) to Automatic, force resync with w32tm, and handle domain time sources, VPN-only sync, RTC drift, and dual boot (Linux UTC vs Windows local time).