Unable to connect Microsoft SQL Server to Power BI Desktop

Hi Team,

I am trying to import data from MS SQL to Power BI Desktop but  i am getting an error like this,"Microsoft SQL: A connection was successfully established with the server, but then an error occurred during the login process. (provider: SSL Provider, error: 0 - The certificate chain was issued by an authority that is not trusted.)"

When i use . or Localhost it's working, but only it doesn't work when i given a Server Name.

Can anyone help me with this?

Thanks.