Time Provider NtpClient: This machine is configured to use the domain hierarchy to determine its time source, but the computer ...

Time Provider NtpClient: This machine is configured to use the domain hierarchy to determine its time source, but the computer is joined to a Windows NT 4.0 domain. Windows NT 4.0 domain controllers do not have a time service and do not support domain hierarchy as a time source. NtpClient will attempt to use an alternate configured external time source if available. If an external time source is not configured or used for this computer, you may choose to disable the NtpClient.