http://blogs.technet.com/maweeras/archive/2009/05/08/dcdiag-reports-not-advertising-as-time-server.aspxJust a quick post. Was onsite recently and had a DC that was not advertising is a time server. DCDiag confirmed it. Checked announceflags and it was set to 10 in hex (0x00000010) instead of 10 in decimal (0x0000000A). Changed registry value and use “w32tmen-USCommunityServer 2.1 SP1 (Build: 61025.2)