The most common approach to resolve this condition is to remove the need to bind to the shutdown port by changing the port allocation to '-1' in the DCD Apache-Tomcat's server.xml file. The server.xml file can be found in DCD's /.../DCD/catalina-base/conf directory. Use ISPF 3.17 to 'ea' (edit ascii) on the server.xml member changing
<Server port="XXXXX" shutdown="SHUTDOWN"> to <Server port="-1" shutdown="SHUTDOWN">
Save the change, and restart DCDCONTL.