Details of the event with ID 2 of the source Microsoft-Windows-EnrollmentWebService

Event Source:	Microsoft Windows EnrollmentWebService
Event ID:	2 (0x2)
Event log:	Microsoft-Windows-EnrollmentWebService/Admin
Event type:	Error
Event text (English):	The Certificate Enrollment Web Service failed to start. Confirm that the Certificate Enrollment Web Service is properly installed, and restart Internet Information Services (IIS) by using iisreset.exe. If the problem persists, enable tracing in the web.config file, restart IIS, attempt to enroll for a certificate again from any client, and then contact Microsoft Customer Service and Support with the trace file information. %1
Event text (German):	Error starting the certificate registration web service. Ensure that the Certificate Enrollment Web Service is installed correctly and restart Internet Information Services (IIS) by using the iisreset.exe file. If the problem persists, enable tracing in the web.config file, restart IIS, retrieve policy information again from any client, and then contact Microsoft Customer Service and Support with the information in the tracing file. %1

Parameter

The parameters contained in the event text are filled with the following fields:

• %1: Error (win:Int32)

The Certificate Enrollment Web Services (Certificate Enrollment Policy Web Service, CEP, and Certificate Enrollment Web Service, CES) enable the automatic request and renewal of certificates from a certification authority via a Web-based interface. This eliminates the need to contact the certification authority directly via Remote Procedure Call (RPC). For a more detailed description, see the article "Certificate request basics via Certificate Enrollment Web Services (CEP, CES)„.

Description

The web application is loaded by the first client. It is executed in the respective login context of the user.

If an error occurs in this process, it is usually logged by a separate event (source System.ServiceModel 4.0.0.0).

In this case you can see that a connection to the certificate authority is established but fails with error code RPC_S_SERVER_UNAVAILABLE, which indicates network (firewall) or Kerberos delegation problem.

Safety assessment

The security assessment is based on the three dimensions of confidentiality, integrity and availability.

No description has been written for this yet.

Related links:

• Overview of Windows events generated by the Certificate Enrollment Web Service (CES).

External sources

• Certificate Enrollment Web Services in Active Directory Certificate Services (Microsoft)