I have a domain controller configured to use time.windows.com (with 0x09 flags set). I've noticed that frequently the systems' clock is fast - it varies from 10 minutes to even 45 minutes. I always have to keep resetting the system date/time back to what it should be.
When I run "w32tm /query /source" it tells me it's using time.windows.com, and obviously I trust Microsoft not to serve incorrect times, but why is my server's clock fast?
There are a few Time-Service events in the System log:
Event ID: 142
Message: The time service has stopped advertising as a time source because the local clock is not synchronized.
Event ID: 139
Message: The time service has started advertising as a time source.
These two messages appear in pairs every hour or so. Event 142 appears 14 to 16 minutes after 139 appears.
Going back a few months, these events appear:
Event ID: 35
Message: The time service is now synchronizing the system time with the time source time.windows.com,0x9 (ntp.m|0x9|0.0.0.0:123->184.108.40.206:123).
Event ID: 37
Message: The time provider NtpClient is currently receiving valid time data from time.windows.com,0x9 (ntp.m|0x9|0.0.0.0:123->220.127.116.11:123).
Event ID: 47
Message: Time Provider NtpClient: No valid response has been received from manually configured peer time.windows.com,0x9 after 8 attempts to contact it. This peer will be discarded as a time source and NtpClient will attempt to discover a new peer with this DNS name. The error was: The time sample was rejected because: The peer is not synchronized, or it has been too long since the peer's last synchronization.
These three events only appear once in the log, back in October.
Here is the output of w32tm /query /status /verbose:
enter code here C:\Users\Administrator>w32tm /query /status /verbose Leap Indicator: 3(last minute has 61 seconds) Stratum: 3 (secondary reference - syncd by (S)NTP) Precision: -6 (15.625ms per tick) Root Delay: 0.1794868s Root Dispersion: 4.6419912s ReferenceId: 0x41371515 (source IP: 18.104.22.168) Last Successful Sync Time: 2011-12-05 23:25:18 Source: time.windows.com,0x9 Poll Interval: 6 (64s) Phase Offset: 0.0000695s ClockRate: 0.0156243s State Machine: 1 (Hold) Time Source Flags: 0 (None) Server Role: 0 (None) Last Sync Error: 2 (The computer did not resync because only stale time data was available.) Time since Last Good Sync Time: 1281.9919104s