Windows time service not syncing correctly

[mushyuk]

i guys, my first post here but i am now pulling my hair out over this.

I am having an issue whereby one of our dc's is not receving the correct time from our authorative time server.

Main DC - is configured as our ntp server and is set to use an external time source. This works fine and the correct time is displayed.

Command used to set this was:

w32tm /config /manualpeerlist:pool.ntp.org,0x8 /syncfromflags:MANUAL /update

2nd DC - was originally set using some weird and wonderful ntp server which was actually invalid (lots of errors in event log relating to connection problems) so i have reset this servers values to use the domain time service.

Command used was:

w32tm /config /syncfromflags:DOMHIER /update

Type is also set to NT5DS

I am however now seeing event ID 50 errors in the event log (time difference of greater than 5000 milliseconds) and it is correct the time difference between the 2 servers is around 4 minutes.

If i manually run w32tm /resync the command completes succesfully and the correct time is set, however after a few seconds the time reverts back to being 4 minutes out.

Both are running windows 2003

Any ideas?

[allen2]

Look in the registry of the 2nd DC:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\w32time\Parameters
NTPServer=
Type=

Those values should be set correctly.

Also if both dc should be redundant, you should be set them to both synchronize with the external source so when one is down the second will still be able to provide time to clients.

[mushyuk]

Can close this guys, I figured out what was going on. The 2nd dc was a virtual server, **** thing was reverting back to the hosts times (which was incorrect), i set the correct time on the host and all time servers are now syncing correctly.

thx for looking and the reply.