To resolve this issue, update the Trusted Root Certification Authorities
list on the Client Computer Communication
tab in the Site Properties
dialog box to include the issuer of the PKI certificate. System Center 2012 Configuration Manager SP1 uses this list of trusted CAs as the basis for its trusted issuer list. For example, if Mac clients have PKI certificates that are issued by the corporate root “CA1,” add or import “CA1” to the list as one of the trusted issuers.
This issue is also documented at the following TechNet website:The third-party products that this article discusses are manufactured by companies that are independent of Microsoft. Microsoft makes no warranty, implied or otherwise, about the performance or reliability of these products.