The role configuration for the Certificate Enrollment Web Service (CES) fails with error message "The RPC server is unavailable. 0x800706ba (WIN32: 1722 RPC_S_SERVER_UNAVAILABLE".

Assume the following scenario:

• A role configuration for the Certificate Enrollment Web Service (CES) is performed.
• The role configuration fails with the following error message:

The Certificate Enrollment Web Service Setup failed because the CA "CA02.intra.adcslabor.de\ADCS Labor Issuing CA 1" cannot be contacted. Check the name, and confirm that the CA is properly configured and available. The RPC server is unavailable. 0x800706ba (WIN32: 1722 RPC_SERVER_UNAVAILABLE)   

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)„.

Possible causes

Errors that may occur due to a problem with the network connection or authentication to the RPC/DCOM interface cause the RPC_S_SERVER_UNAVAILABLE error code.

For a detailed description of all possible causes, see the article "Certificate request fails with error message "The certificate request could not be submitted to the certification authority. Error: The RPC server is unavailable. 0x800706ba (WIN32: 1722 RPC_S_SERVER_UNAVAILABLE)".„.