Unable to open the HL7 Editor

GUI Platform:
Java version: 1.7.0_25
Java vendor: Oracle Corporation
OS type: Windows 7
OS version: 6.1
OS arch: x86

GUI Build Information:
Version: 6.1.2.0P
Date: Mon Jan 18 2016
Time: 02:35:37 PM
Platform: Windows_NT
Java Vendor: Sun Microsystems Inc.
JDK Version: 1.7.0_45
Swing Version: 1.7.0_45
RMI Version: 1.7.0_45

Server Platform:
Java version: 1.7.0
Java vendor: IBM Corporation
OS type: AIX
OS version: 7.1
OS arch: ppc

Host Server Build Information:
Version: 6.1.2.0P
Date: Mon Jan 18 2016
Time: 02:35:37 PM
Platform: Windows_NT
Java Vendor: Sun Microsystems Inc.
JDK Version: 1.7.0_45
Swing Version: 1.7.0_45
RMI Version: 1.7.0_45

I open up the GUI, attempt to open an HL7 Configurator page and get a dialog with the words

<pre>Fatal Internal Error
Unable to register the config change listeners.
This is a serious error, you should contact Customer Support!
This is Fatal Error.  This GUI will now exit
Error unmarshaling return header; nested exception is:
    java.net.SocketTimeoutException: Read timed out</pre>