Check Event Viewer regularly for messages that might indicate developing problems. Microsoft NNTP Service writes a message to the System log in Event Viewer each time the service starts and stops, an operator command is processed, or an error is detected.
You can make it easier to find Microsoft NNTP Service messages by filtering the messages in Event Viewer.
For a complete list of all messages that can be written by Microsoft NNTP Service, see Windows NT Events for Microsoft NNTP Service.