I am trying to use the SCCM import function.

I am an SCCM admin using the FS Probe Tool on the SCCM server which also hosts the CM database.

When trying to create the SCCM DB connection, I have tried many variations of domain/local, user accounts, DB settings.  Nothing works.  The closest I can get is an error:
SQL Server Connection failed.

The FS Probe log shows these entries:
2024-09-18 11:38:50,418 81] DEBUG Freshservice.Discovery.Utilities.ImpersonateUser - Did LogonUser Succeed? Yes
2024-09-18 11:38:50,419 91] DEBUG Freshservice.Discovery.Utilities.ImpersonateUser - Before impersonation: PADOM\SCCMAdmin
2024-09-18 11:38:50,419 91] DEBUG Freshservice.Discovery.Utilities.ImpersonateUser - After impersonation: PADOM\DBAdmin
2024-09-18 11:38:50,419 91] INFO Freshservice.Integrations.Common.Connectors.SQLServerConnector - verifyConnection invoked