During these years I faced, on server and clients, several authentication problems due to wrong time and date.
Here they are some commands and tips useful for this troubleshottoing purpose:
w32tm /monitor
2. Run the following command on the PDC emulator:
w32tm /config /manualpeerlist:timeserver /syncfromflags:manual /reliable:yes /update
Once done, restart W32Time service.
net stop w32time | net start w32time
3. Run the following command on all other DCs (that are not PDC):
w32tm /config /syncfromflags:domhier /update
Once done, restart W32Time service:
net stop w32time | net start w32time
I have often, in recent years, to solve problems of e-mail or authentication domain generated from misconfigurations time servers.
4. To check the source time server:
w32tm /query /status
5. You can check registry entries if the domain controller is using NTP (should be on PDC) or NT5DS (on non-PDC):
Find the value of Type under
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\Parameters
reg query
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\Parameters
6. re-sync the w32time service using the following command:
w32tm /resync /rediscover
<---------->
7. Execute the following command to actually perform a time synchronization with the external source
w32tm.exe /config /update
Some articles and tools
port query Tool GUI
https://www.microsoft.com/en-us/download/details.aspx?id=24009
Technet - Windows Time Service Tools and Settings
https://technet.microsoft.com/en-us/library/cc773263(v=ws.10).aspx
Time Configuration in Active Directory
http://blogs.technet.com/b/nepapfe/archive/2013/03/01/it-s-simple-time-configuration-in-active-directory.aspx
Configure DC to synchronize time with external NTP server
https://community.spiceworks.com/how_to/65413-configure-dc-to-synchronize-time-with-external-ntp-server
[update 2021.03.04]
Here they are register keys related to date and time Windows services
Microsoft Registry
HKLM\SYSTEM\CurrentControlSet\Services\W32Time\Config
HKLM\SYSTEM\CurrentControlSet\Services\W32Time\Parameters
HKLM\SYSTEM\CurrentControlSet\Services\W32Time\TimeProviders\NtpClient
HKLM\SYSTEM\CurrentControlSet\Services\W32Time\TimeProviders\NtpServer
