makarovs Posted January 21, 2013 Report post Posted January 21, 2013 Hello. We have moved our CA from Server 2008R2 to Server 2012 I've checked Certificate Templates for SCCM and WebServer, and it seems like they are fine, version less than 3, and auth level Server 2003, as requested by MS. However, all my clients were rejected with "MP has rejected registration request due to failure in client certificate (Subject Name: ) chain validation. If this is a valid client, Configuration Manager Administrator needs to place the Root Certification Authority and Intermediate Certificate Authorities in the MPÆs Certificate store or configure Trusted Root Certification Authorities in primary site settings. The operating system reported error 2148204809: A certificate chain processed, but terminated in a root certificate which is not trusted by the trust provider" May i please ask for advise? Is Windows Server 2012 Certification Authority supported as PKI for System Center Configuration Manager 2012 in general? Thank you Quote Share this post Link to post Share on other sites More sharing options...