Can anyone explain to me why my Windows clock is constantly about 27
seconds slow? I've got the NTP/w32time service working correctly as
far as I can determine - if I set the time incorrectly and then
manually do a
> w32tm /resync
Sending resync command to local computer...
The command completed successfully.
it resets the time, but it's about 27 seconds slow! Constantly. It's
driving me slightly crazy...

Can anyone explain this and if possible suggest a remedy?

(I'm totally up to date on XP service packs etc. and here's my w32time
registry data if that helps...

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Servic es\W32Time]
"Description"="Maintains date and time synchronization on all clients
and servers in the network. If this service is stopped, date and time
synchronization will be unavailable. If this service is disabled, any
services that explicitly depend on it will fail to start.

"
"DisplayName"="Windows Time"
"ErrorControl"=dword:00000001
"Group"=""
"ImagePath"=hex(2):25,00,53,00,79,00,73,00,74,00,6 5,00,6d,00,52,00,6f,
00,6f,00,\
74,00,25,00,5c,00,53,00,79,00,73,00,74,00,65,00,6d ,00,33,00,32,00,5c,
00,73,\
00,76,00,63,00,68,00,6f,00,73,00,74,00,2e,
00,65,00,78,00,65,00,20,00,2d,00,\
6b,00,20,00,6e,00,65,00,74,00,73,00,76,00,63,00,73 ,00,00,00
"Objectname"="LocalSystem"
"Start"=dword:00000002
"Type"=dword:00000020
"FailureActions"=hex:
05,00,00,00,00,00,00,00,00,00,00,00,02,00,00,00,64 ,00,20,\
00,01,00,00,00,60,ea,00,00,01,00,00,00,60,ea,00,00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Servic es\W32Time\Config]
"LastClockRate"=dword:00018730
"MinClockRate"=dword:00018636
"MaxClockRate"=dword:0001882a
"FrequencyCorrectRate"=dword:00000004
"PollAdjustFactor"=dword:00000005
"LargePhaseOffset"=dword:00138800
"SpikeWatchPeriod"=dword:0000005a
"HoldPeriod"=dword:00000005
"MaxPollInterval"=dword:0000000f
"LocalClockDispersion"=dword:0000000a
"EventLogFlags"=dword:00000002
"PhaseCorrectRate"=dword:00000001
"MinPollInterval"=dword:0000000a
"UpdateInterval"=dword:00057e40
"MaxNegPhaseCorrection"=dword:0000d2f0
"MaxPosPhaseCorrection"=dword:0000d2f0
"AnnounceFlags"=dword:0000000a
"MaxAllowedPhaseOffset"=dword:00000001

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Servic es\W32Time
\Parameters]
"ServiceMain"="SvchostEntry_W32Time"
"ServiceDll"=hex(2):44,00,3a,00,5c,00,57,00,49,00, 4e,00,44,00,4f,
00,57,00,53,\
00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00 ,32,00,5c,
00,77,00,33,00,\
32,00,74,00,69,00,6d,00,65,00,2e,00,64,00,6c,00,6c ,00,00,00
"NtpServer"="ntp.eunet.no,0x1"
"Type"="NTP"

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Servic es\W32Time
\Security]
"Security"=hex:
01,00,14,80,a8,00,00,00,b4,00,00,00,14,00,00,00,30 ,00,00,00,02,\
00,1c,00,01,00,00,00,02,80,14,00,ff,01,0f,
00,01,01,00,00,00,00,00,01,00,00,\
00,00,02,00,78,00,05,00,00,00,00,00,14,00,8d,
00,02,00,01,01,00,00,00,00,00,\
05,0b,00,00,00,00,00,18,00,ff,01,0f,
00,01,02,00,00,00,00,00,05,20,00,00,00,\
20,02,00,00,00,00,18,00,8d,
00,02,00,01,02,00,00,00,00,00,05,20,00,00,00,23,\
02,00,00,00,00,14,00,9d,
00,00,00,01,01,00,00,00,00,00,05,04,00,00,00,00,00 ,\
18,00,9d,
00,00,00,01,02,00,00,00,00,00,05,20,00,00,00,21,02 ,00,00,01,01,00,\
00,00,00,00,05,12,00,00,00,01,01,00,00,00,00,00,05 ,12,00,00,00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Servic es\W32Time
\TimeProviders]

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Servic es\W32Time
\TimeProviders\NtpClient]
"Enabled"=dword:00000001
"InputProvider"=dword:00000001
"AllowNonstandardModeCombinations"=dword:00000 001
"CrossSiteSyncFlags"=dword:00000002
"ResolvePeerBackoffMinutes"=dword:0000000f
"ResolvePeerBackoffMaxTimes"=dword:00000007
"CompatibilityFlags"=dword:80000000
"EventLogFlags"=dword:00000000
"DllName"="D:\\WINDOWS\\System32\\w32time.dll"
"SpecialPollTimeRemaining"=hex(7):6e,00,74,00,70,0 0,2e,
00,65,00,75,00,6e,00,65,\
00,74,00,2e,00,6e,00,6f,00,2c,
00,37,00,61,00,33,00,36,00,34,00,64,00,63,00,\

00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00,00 ,00,00,00,00,00,00,00
"SpecialPollInterval"=dword:00093a80

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Servic es\W32Time
\TimeProviders\NtpServer]
"Enabled"=dword:00000001
"InputProvider"=dword:00000000
"AllowNonstandardModeCombinations"=dword:00000 001
"DllName"="D:\\WINDOWS\\System32\\w32time.dll"

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Servic es\W32Time\Enum]
"0"="Root\\LEGACY_W32TIME\\0000"
"Count"=dword:00000001
"NextInstance"=dword:00000001