JBDS 7/Designer 8.3 having issues connecting to a EDS 5.x server

Teiid Designer is having issues connecting to an EDS 5.x server.

I see the issue manifest itself in several areas:

• setting up the server instance to point to the EDS 5.x server, and have it configured to externally managed. Start the server, but the Teiid Server Instance subsystem shows its not connected
• Was able to use the JBDS import to create source model, but was unable to execute data preview, as an error message was presented that said it could not connect to the server.