Hi Kurt, would you mind sharing the External DataSource creation code you used to connect to Cache? I am trying to do the same thing and getting a similar error on External Table Creation "Driver Not Capable". I'm just trying to pull in one column for testing and its a simple varchar(20). Native Error 469 doesnt tell me anything when I look it up other than Driver Not Capable. We recently upgraded to the IRIS drivers and they work for linked server without issues.  Any help would be appreciated.