Our system have 02 DCs, 01 windows 2003 standard and 01 windows 2008 R2.
We got the following warning in Event Viewer every 05 mins.
“Security policies were propagated with warning. 0x534 : No mapping between account names and security IDs was done…”
I found out this warning is generated as the following users couldn’t be found: MSSQLSERVER, SQLSERVERAGENT, MSSQLFDLauncher.
I already fixed this warning on Windows 2008 by adding NT SERVICE before those users.(KB 975566 & 974639)
However, the warning still occurs on windows 2003 DC. And I couldn’t find similar KB applied for windows 2003 for this issue.