I'm currently able to connect to the current tax year, 2020, via ODBC just fine, but if I point to 2019, I get 'Unable to perform authorization check. The LacerteTax application must be setup and have resolved the proper realm id.' I do have Lacerte 2019 installed. Here's my connection string:

driver=LacerteDSIIDriver; DataDir=C:\LacerteData_\19tax\SData; TaxYear=19; ReturnType=SCorporate

I'm certain this is correct.

I can see client data in the 2019 app, if that helps at all. I can also connect to 2019 via the system DSN with Excel. I get prompted to Grant, and prompted for credentials. That does not happen in my .NET app. For 2020, it happens.

Any thoughts? Is there something special I have to do for previous years?

Thank you in advance.

Sincerely,

John Hamilton