In summary, after the upgrade I can make connection to SQL Server working only setting a system DSN and specifying it in QGis. So, the question is: how I can connect to SQL Server using the SQL Server ...

Client and server are on the SAME machine at the same time, that is, my application ASP.NET Core (EF Core -> Microsoft.Data.SqlClient (>=5.1.0 version)) tries to connect to SQL Server database when ...