Windows Server 2008 R2: Configure Time Synchronization to an External Source

After upgrading my servers to Windows Server 2008 R2, I needed to reconfigure the time synchronization to an external source. Our Hardware Firewall is our time server in this case.

SOLUTION

Open a command prompt and run the following commands to sync with the Netscreen Firewall:

1) w32tm /config /manualpeerlist:"10.0.8.200",0x8 /syncfromflags:MANUAL

2) net stop w32time

3) net start w32time

Wait about 30 seconds.

4) w32tm /query /status

You should get the following results:

Leap Indicator: 0(no warning)
Stratum: 2 (secondary reference - syncd by (S)NTP)
Precision: -6 (15.625ms per tick)
Root Delay: 0.0312500s
Root Dispersion: 2.7839913s
ReferenceId: 0x0A0008C8 (source IP: 10.0.8.200)
Last Successful Sync Time: 7/17/2012 8:45:28 AM
Source: 10.0.8.200,0x8
Poll Interval: 6 (64s)

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