We have a large (5500+) mixed OS (mostly Win7, a few WinXP) environment, with 6 Server 2003 DCs, running at a 2003 Functional Level. These DC's are housed in four separate locations, all 'direct' connected to our home office via fiber.
We've noticed a time discrepancy in the past month or two with workstation time. Initial diagnosis showed us that there are varying times between the six domain controllers.
The DC setup seems consistent and correct (as far as I know it... I don't have much experience with Server 2003). DC2 has the PDC Emulator role, and is configured to use 0.north-america.pool.ntp.org as it's time server. All other DCs are configured to look to DC2 for their time.
The odd thing is that even though we currently have a discrepancy of more than 3 minutes between DC1 and DC2, there are no (that I can find, anyway) NTP errors being reported on either server.
Can someone assist me in troubleshooting this?