Forum Discussion
bout-IT
Aug 27, 2026Copper Contributor
Two-tier AD Certificate Services error importing cert into SubCA
Hello, I'm new here, but excited about being able to hob nob with all you in furthering our IT goals. I'm setting up my root and Subordinate CA and I'm importing my rootCA issued, subCA certifica...
Sep 08, 2026
Hello bout-IT ,
The error occurs because the certificate you are trying to install does not match the one ADCS expects; you may have submitted the incorrect certificate request file.
You need to resubmit the most recently generated .req file to the CA and obtain a new certificate.
If the issue persists, there may be a mismatch between the certificate store and the registry.