What you’ll notice: Users can’t log in, or you see Kerberos errors (Event ID 5 or 11).
Why it happens:
- Your servers or computers are not all showing the same time
How to fix it:
- Set the PDC (Primary Domain Controller) to sync with a reliable NTP time server
- Make sure all other DCs and client PCs sync their time from the PDC
- Use
w32tm /query /statusto check time status
