Details of the event with ID 94 of the source Microsoft-Windows-CertificationAuthority

Event Source:	Microsoft-Windows-CertificationAuthority
Event ID:	94 (0x5E)
Event log:	Application
Event type:	Warning
Symbolic Name:	MSG_CA_CERT_NO_AUTH_STORE
Event text (English):	Active Directory Certificate Services %1 cannot open the certificate store at CN=NTAuthCertificates,CN=Public Key Services,CN=Services in the Active Directory's configuration container.
Event text (German):	The certificate store under "CN=NTAuthCertificates,CN=Public Key Services,CN=Services" in the Active Directory configuration container cannot be opened by Active Directory Certificate Services %1.

Parameter

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

• %1: CACommonName (win:UnicodeString)

Example events

Active Directory Certificate Services ADCS Labor Issuing CA 1 cannot open the certificate store at CN=NTAuthCertificates,CN=Public Key Services,CN=Services in the Active Directory's configuration container.

Description

Usually occurs when the certificate authority cannot connect to a domain controller, for example, due to lack of network connectivity, firewall rules, or because all domain controllers are offline. See also Events no. 91, 44 and 9.

Safety assessment

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

No description has been written for this yet.

Microsoft rating

Microsoft evaluates this event in the Securing Public Key Infrastructure (PKI) Whitepaper with a severity score of "Low".

Related links:

• Overview of Windows events generated by the certification authority
• Overview of audit events generated by the Certification Authority

External sources

• Event ID 94 - AD CS Active Directory Domain Services Connection (Microsoft)
• Securing Public Key Infrastructure (PKI) (Microsoft)