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Windows Server 2008 keep changing time

Posted on 2012-12-20
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Last Modified: 2013-01-17
Hi.
I have the following scenario.
One physical server running windows 2008 with Hyper V
Two Virtual servers. One is running Windows 2008 SBS and one running windows 2008 with terminal server.
For some reason the SBS start getting the wrong time by 30 minutes.
Because of that the PC's get the wrong time from the server that is different than the terminal server and they can't logon or access it anymore until I correct the time.
Problem is that after one week the problem start again.
Why only the SBS will have this problem?
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Question by:infedonetwork
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13 Comments
 
LVL 10

Expert Comment

by:cbmm
ID: 38710514
Windows 2008 will get its time from the Bios, not from the internet unless you changed it. You can change it here:
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LVL 2

Author Comment

by:infedonetwork
ID: 38710532
I know but for some reason the other two windows that run on the same box has the correct time.
One thing I see different on this one is date format but that should not make any difference.
It goes 10 min ahead than the other 2.
If it will be the bios would not the other 2 get the same time?
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Expert Comment

by:cbmm
ID: 38710539
Its possible they are setup to use an ntp
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Author Comment

by:infedonetwork
ID: 38710546
How can I setup the SBS to use NTP?
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Author Comment

by:infedonetwork
ID: 38710557
Looks like the SBS is using the time.windows.com

C:\Users\Administrator>w32tm /query /status
Leap Indicator: 0(no warning)
Stratum: 3 (secondary reference - syncd by (S)NTP)
Precision: -6 (15.625ms per tick)
Root Delay: 0.0782102s
Root Dispersion: 0.3848169s
ReferenceId: 0x41371514 (source IP:  65.55.21.20)
Last Successful Sync Time: 12/20/12 11:01:41 AM
Source: time.windows.com,0x1
Poll Interval: 6 (64s)
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Expert Comment

by:cbmm
ID: 38710563
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LVL 2

Author Comment

by:infedonetwork
ID: 38710566
This is from the terminal server

Leap Indicator: 0(no warning)
Stratum: 2 (secondary reference - syncd by (S)NTP)
Precision: -6 (15.625ms per tick)
Root Delay: 0.0000000s
Root Dispersion: 0.0100000s
ReferenceId: 0x564D5450 (source IP:  86.77.84.80)
Last Successful Sync Time: 12/20/2012 10:55:01 AM
Source: VM IC Time Synchronization Provider
Poll Interval: 10 (1024s)
0
 
LVL 10

Expert Comment

by:cbmm
ID: 38710574
Do you see any errors in the event viewer that are related to time not being able to sync?
0
 
LVL 2

Author Comment

by:infedonetwork
ID: 38710596
No. Only tons of DCOM errors like this one that I think is related to wrong time between the client and the server" DCOM was unable to communicate with the computer shipping using any of the configured protocols.
0
 
LVL 10

Expert Comment

by:cbmm
ID: 38710628
Run "net time" from a command prompt and show the results.

On your SBS you need to change the 0x1 to 0x9
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LVL 2

Accepted Solution

by:
infedonetwork earned 0 total points
ID: 38710660
I fix it by running the following command on both server:
w32tm /config /manualpeerlist:us.pool.ntp.org
Restart windows time services.
This way they both have the same NTP server.
Before they had different time server and that could cause the problem even if it should not.
The one that had the problem was grabbing the time from time.windows.com
Now they both grab from the same spot.
I will keep en eye on for a week to see if it work the way it suppose to
0
 
LVL 10

Expert Comment

by:cbmm
ID: 38710693
also the 0x1 flag uses less network resource, but not as accurate
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Author Closing Comment

by:infedonetwork
ID: 38786394
Fix problem by searching on Microsoft support site
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