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Windows Server 2008 R2 Thread, HP DC Gains 4 Minutes Over a Term in Technical; We have a HP DC that will gain four minutes over a term. It's set to sync with pool.ntp.org so ...
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    tech_guy's Avatar
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    HP DC Gains 4 Minutes Over a Term

    We have a HP DC that will gain four minutes over a term. It's set to sync with pool.ntp.org so I'm baffled. Any ideas?

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    These are the ntp addresses I normally use.

    0.uk.pool.ntp.org
    1.uk.pool.ntp.org
    2.uk.pool.ntp.org
    3.uk.pool.ntp.org

  3. Thanks to Davit2005 from:

    tech_guy (3rd June 2013)

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    AngryTechnician's Avatar
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    Is it a virtual server or physical?

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    tech_guy (3rd June 2013)

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    tech_guy's Avatar
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    Physical and we're using:

    0.uk.pool.ntp.org
    1.uk.pool.ntp.org
    2.uk.pool.ntp.org
    3.uk.pool.ntp.org

  7. #5

    Michael's Avatar
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    You could always change the watch battery on the motherboard, although normally you lose time rather than gain it.

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    Does your ISP allow you to connect to those ntp addresses?

    The SWGfL for example blocks access to any ntp servers except their own so it may be worth finding this out.

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    yeap, I have swgfl so I just used their timeserver ntp.swgfl.org.uk that way you also don't have to worry about proxy settings.
    Last edited by chazzy2501; 3rd June 2013 at 01:25 PM.

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    AngryTechnician's Avatar
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    Curious. Anything in the System event log for the Time-Service source that might suggest what the problem is?

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    dont you have to alter a dc's settings to get it to use an ntp server anyway? If you have other dcs is it just updating to "correct" then finding other dcs are different then recorrecting to the same as other dcs?

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    w32tm /query /configuration
    w32tm /query /status

    might help shed some light?
    also i concur checking ports are not blocked.

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    To the OP, funny you should say that, mine do that too. I have had to change mine back as they too had speeded up so to speak.

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    If it's gaining 4 minutes then it not synching with the external clock. More likely you have some sort of synching loop in your domain where 1 machine synchs with another then that one synchs with the first. The only time I've seen this is before is when I had a a virtual DC set to synch from the virtual host and vice versa. The miniscule delay between synching and changing the time increases the time difference between the two very very slowly but it builds to minutes over a few months.

    Check which machines on your network are time servers - I bet you have more than one.

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