When running AutoSPInstaller with setup account as SYSADMIN, the Configuration Wizard get stuck on 10% and I see database permssion errors in the Event Viewer.
I know the script verifies that the farm service account is assigned dbcreator and securityadmin at startup. But in my experience, I need to assign the account SYSADMIN for it to work.
Reference documentation: https://learn.microsoft.com/en-us/SharePoint/install/account-permissions-and-security-settings-in-sharepoint-2013?redirectedfrom=MSDN#farm-administrator-user--account