The Master DTM failed to connect to the Preparer DTM.
The master DTM process failed to connect to the preparer DTM process. There may be a network failure and the master DTM and preparer DTM processes are running on different nodes. The preparer DTM process may have shut down unexpectedly.
View the workflow log to see if the DTM process started on the node. If the DTM process started and shut down unexpectedly, the error is internal. If the error is not internal, contact the Network Administrator to verify that the network does not have connectivity issues. Contact the domain Administrator to verify that the Integration Service is running. Run the session again.