Some computers are 5 to 6 minutes ahead in time

i have dc acting ntp internal server users complaining times 5 6 minutes ahead of time.

i followed kb article http://support.microsoft.com/kb/816042/en-us 3 years ago , works fine since then.

recently have changed pdc emulator new server , old server configured domhier configuration avoid 2 ntp servers, reverting "original" config, using single ntp server.

we installed time-sensitive application , users complaing 5-6 minutes wrong time.

i created startup script every reboot, force synch pdc emulator, using net time /s /y command, several minutes after, time changes again 5-6 minutes difference , stays ahead of time until new net time /s /y command

some tip me?

we discovered 1 vm/dc "time synch" integration services enabled , physical machine more thant 5 minutes ahead of time.

yesterday changed time in hyper-v , noticed tha of users have logonserver variable pointed particular vm.

we´re waiting user feedback

just make sure time update, we´ll create startup script log , make time updated @ start time

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@echo off
cls

echo.
echo.
echo env vars
set timeserver=ntp.company.net
set tempfolder=c:\windows\temp
set transffolder=\\server\share\transf\
set version=1.5
set timelogfile=%tempfolder%\forcenettimev_%version%.log

echo.
echo.
echo forcenettime version %version%fb

echo.
echo.
echo %tempfolder% e %transffolder%
if not exist %tempfolder%\*.* mkdir %tempfolder%
if not exist %transffolder%\*.* mkdir %transffolder%

echo.
echo.
echo enabling debug mode w32tm /debug /enable /file:%tempfolder%\w32time.log /size:100000 /entries:0-300
if not exist %tempfolder%\w32time.log w32tm /debug /enable /file:%tempfolder%\w32time.log /size:100000 /entries:0-300

echo.
echo.
echo checktime
echo %computername%,%date%,%time% > computername%.time.csv
net time \\%timeserver% >> computername%.time.csv

echo.
echo.
echo forcenettime
net time \\%timeserver% /set /yes > %timelogfile%

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Windows Server  >  Server Manager