PC Clock gaining time

  • Thread starter Thread starter Mick Southam
  • Start date Start date
M

Mick Southam

Hi

I have 3 new PCs on a small LAN and all use Windows XP I have found that the
clocks on all of them gain by about one and a half minutes every 2 hours.
Most PCs I have come across could never be called acurate time keeper but to
be out by this much is not good. Does anyone have any ideas?
 
Mick said:
I have 3 new PCs on a small LAN and all use Windows XP I have found that the
clocks on all of them gain by about one and a half minutes every 2 hours.
Most PCs I have come across could never be called acurate time keeper but to
be out by this much is not good. Does anyone have any ideas?
Click to expand...

Make them synchronize with an internet time server: double-click on the
clock in the system tray (or right-click on the clock and choose 'Adjust
Date and Time') and go to the third tab ("Internet Time"), then check the
"Synchronize" box and pick a good server.

V
 
"Windows XP, as loaded, automatically updates the system time every 7 days
from one of two (default) time servers. This update interval can be changed
as follows:

Using regedit, search for "specialpollinterval" without the quotes.

When it is found in the right hand window pane, open the key. Click on the
"decimal" option.

You will see that the decimal value is 604800, the number of seconds in 7
days.

Edit this decimal value to any value you desire, remembering that there are
86400 seconds in one day, 3600 seconds in one hour. Close the key!

Press F3 to search more.

Edit each instance of the decimal value "specialpollinterval" to exactly the
same decimal value.

Exit regedit.

Reboot system.

Cheers!!!"


--
Regards:

Richard Urban

aka Crusty (-: Old B@stard :-)

april said:
my clock keeps going fast -- it will synchronize if i
tell it to, but will be fast in a couple hours again.
thanks for your help!
Click to expand...



--
Regards:

Richard Urban

aka Crusty (-: Old B@stard :-)
 
Mick said:
I have 3 new PCs on a small LAN and all use Windows XP I have found that the
clocks on all of them gain by about one and a half minutes every 2 hours.
Click to expand...

This problem seems to happen quite often (especially with Dell
machines). Usually a steady rate of loss/gain like 10 minutes in an
hour. It appears to result from a conflict with the BIOS over the
interval between 'timer interrupts'. Windows maintains the clock by
counting these, so if the interval is not the expected one, the rate is
grossly out in this manner.

Try these steps:

1. Start->Run cmd.exe
2. net stop w32time
3. w32tm.exe /unregister
4. w32tm.exe /register
5. net start w32time

(note spellings w32tm and w32time in different commands)

Once this is done, if you synchronise over the Internet (in Control
Panel - Date and Time - Internet time) say every day for the first week,
the system will fine tune its idea on this interval, and the clock
should run pretty accurately, even if you then leave it to the default
weekly sync
 
PC's connected to a LAN are synchronized by the LAN controller (Host CPU). If
you synchronize the clock on it the PC's on the LAN will be synchronized.
 
PC's connected to a LAN are synchronized by the LAN controller (Host CPU). If
you synchronize the clock on it the PC's on the LAN will be synchronized.
news:eXBI%[email protected]...
Click to expand...

Close but no cigar.

If your LAN is based on P2P, then there is no "Host CPU" or "LAN
controller."

I think you are referring to a Domain, in which case when you logon
AND the time service is active (not always the case) then your
computer is synchronised with that of the Primary Domain Controller.

Not all LANs are Domain based.
 
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