Troubleshooting NLT Error in Single Domain Controller Forest on Windows Server 2022
In this article, we will troubleshoot the NLT (NetLogon Time) error in a single domain controller forest on Windows Server 2022. This error can occur shortly after installing a new Windows Server 2022 domain controller, and it can cause issues with authentication and replication. This guide assumes that you have a freshly installed virtual machine with 4 vCPUs and 4 GB of RAM, running Windows Server 2022 Desktop Experience. We will be focusing on on-premises solutions with no cloud involvement.
Understanding the NLT Error
The NLT error is a common issue in Windows Server domains. It occurs when there is a significant time difference between the domain controller and the other domain members. The error message typically states that the time difference between the domain controller and the local system is too large, and it prevents authentication and replication from occurring.
Verifying the System Time
The first step in troubleshooting the NLT error is to verify that the system time is accurate. To do this, right-click on the clock in the taskbar and select "Adjust date/time." Ensure that the date and time are correct, and that the time zone is set correctly for your location.
w32tm /tz
w32tm /display /timezoneSynchronizing the Time with a Reliable Source
Once you have verified the system time, you need to synchronize it with a reliable source. This can be done manually by using the Windows Time service. To do this, open a command prompt as an administrator and enter the following commands:
net stop w32time
w32tm /config /manualpeerlist:xx.xx.xx.xx,0x8 /syncfromflags:manual /reliable:yes
net start w32timeReplace xx.xx.xx.xx with the IP address of the reliable time source. For example, you could use the IP address of a time server from the National Institute of Standards and Technology (NIST).
Checking the Time Synchronization
After synchronizing the time, you need to check that the time synchronization is working correctly. To do this, open a command prompt as an administrator and enter the following command:
w32tm /query /peersChecking the Netlogon Service
If the time synchronization is working correctly, the next step is to check the Netlogon service. To do this, open a command prompt as an administrator and enter the following command:
netdiag /test:netlogonIf the Netlogon service is not working correctly, you may need to restart it. To do this, open a command prompt as an administrator and enter the following command:
net stop netlogon
net start netlogonChecking the Event Viewer
The final step in troubleshooting the NLT error is to check the Event Viewer for any relevant error messages. To do this, open the Event Viewer and look for any errors in the Application and System logs.
- The NLT error can occur shortly after installing a new Windows Server 2022 domain controller
- The error message typically states that the time difference between the domain controller and the local system is too large
- To troubleshoot the NLT error, verify the system time, synchronize it with a reliable source, and check the Netlogon service and