To resolve this issue, remove the port number from the JDBC connection URL.The port number is not needed when a named instance (see
Instance Configuration for more details on using a default versus a named instance) is provided in the connection string. The following is an example connection string for your reference.
jdbc:tibcosoftwareinc:sqlserver://<host>\<instance>;databaseName=<databaseName>
Note: This is applicable for any JDBC connection to a Microsoft SQL Server named instance using the TIBCO Data Direct driver, including a TIBCO Spotfire Server bootstrap connection and Action Log configuration as well.