When I use an appliation to connect to Denodo is a 32-bit, I will check the followings:
* the 32-bit Denodo ODBC driver is installed
* the driver is correctly specified in the DSN configuration
* the DSN is correctly specified from the application
I found the relevant info in the following Knowledge Base article.
* [How to access Denodo Virtual DataPort from Microsoft SQL Server Reporting Services](https://community.denodo.com/kb/view/document/How%20to%20access%20Denodo%20Virtual%20DataPort%20from%20Microsoft%20SQL%20Server%20Reporting%20Services?category=Northbound+Connections)
Hope this helps!