Cannot initialize the data source object of OLE DB provider "MSDASQL" for linked server "IRIS"

Hi

I get the following error when I am trying to create a linked server connection via MS OLE DB Provider for ODBC Drivers in MS SQL Server Management Studio. The message I get is:

The OLE DB provider "MSDASQL" for linked server "IRIS" reported an error. The provider did not give any information about the error.
Cannot initialize the data source object of OLE DB provider "MSDASQL" for linked server "IRIS". (Framework Microsoft SqlClient Data Provider)

I have setup the InterSystems ODBC setting on the server. Have enabled a number SPN settings but still getting this error

The full error message is :

===================================

The linked server has been created but failed a connection test. Do you want to keep the linked server?

===================================

An exception occurred while executing a Transact-SQL statement or batch. (Microsoft.SqlServer.ConnectionInfo)

------------------------------
Program Location:

   at Microsoft.SqlServer.Management.Common.ServerConnection.ExecuteNonQuery(String sqlCommand, ExecutionTypes executionType, Boolean retry)
   at Microsoft.SqlServer.Management.Smo.ExecutionManager.ExecuteNonQuery(String cmd, Boolean retry)
   at Microsoft.SqlServer.Management.Smo.LinkedServer.TestConnection()
   at Microsoft.SqlServer.Management.SqlManagerUI.LinkedServerProperties.DoPreProcessExecution(RunType runType, ExecutionMode& executionResult)

===================================

The OLE DB provider "MSDASQL" for linked server "IRIS" reported an error. The provider did not give any information about the error.
Cannot initialize the data source object of OLE DB provider "MSDASQL" for linked server "IRIS". (Framework Microsoft SqlClient Data Provider)

------------------------------
For help, click: https://docs.microsoft.com/sql/relational-databases/errors-events/mssqls...

------------------------------
Server Name: ........\..........
Error Number: 7399
Severity: 16
State: 1
Procedure: sp_testlinkedserver
Line Number: 1

Any thoughts?