SCSM 2025 installation failure - _PopulateUserRoles
Let me lay out the full picture first. Windows Server 2025, Remote SQL Server 2022 CU 20 FCI (used for internal reasons, but I also tried using Always On and encountered the same error), and a clean installation of SCSM 2025 Management Server. I also tried CU19, but the same issue occurs. The installation starts without any problems. It goes through all the steps: creates the database, configures registry settings, configures the server, installs services, and imports management packs. But right after that, I get the following error: _"An error occurred while executing a custom action: PopulateUserRoles This upgrade attempt has failed before permanent modifications were made. Upgrade has successfully rolled back to the original state of the system. Once the corrections are made, you can retry the upgrade for this role." Immediately after this, the Event Viewer logs the following Event ID 36882: "The certificate received from the remote server was issued by an untrusted certificate authority. Because of this, none of the data contained in the certificate can be validated. The TLS connection request has failed. The attached data contains the server certificate. The SSPI client process is rundll32 (PID: 5084).” SQL does not require encryption and is not using any custom certificate. Just to clarify, the internal CA certificate is installed on all servers. The event is weird because, at this point, the installation has already created and configured the database. It doesn’t make sense to me, but the event appears at the exact same moment the installation fails. I’ve already checked permissions on both SQL and SCSM. The service account is a local administrator, has "Log on as a service" rights, and is a sysadmin on SQL. I’ve searched everywhere online but haven’t found a solution... Any ideas? Thanks.