Thanks for posting in Microsoft Q&A forum.
Could you please share your ConfigMgrSetup.log with the sensitive information masked, in which may provide specific reasons for the error.
Accroding to the existing information, this problem may caused by that the current login machine account does not have sufficient permissions.
It is recommended to check the permissions of the machine account from two places first:
- Microsoft SQL Server Management Studio
Check whether the account is the System administrator, through the path: Security > Server Roles > sysadmin.
Confirm that the account has permission to Create any database in the propertities of the SQL Server.
- Local Users and Groups
Check if the current account is an administrator of the local machine.
Hope the above information is helpful to you.
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