Group Manager Error message

When trying to access EqualLogic Group Manager, I am getting a Group Manager requires Java SE 6 Update 31 or later. The current version installed is JRE 8u161. From other older posts - suggest to add the location to the Java Security except site list; tried this and still getting a java error. When launching from the browser - it will ask to update... Launching as an application will download the jnlp file which shows up as application blocked by java security..

More information shows this:

ExitException[ 3]com.sun.deploy.security.BlockedException: Your security settings have blocked an application signed with an expired or not-yet-valid certificate from running at sun.plugin2.applet.JNLP2Manager.prepareLaunchFile(Unknown Source) at sun.plugin2.applet.JNLP2Manager.loadJarFiles(Unknown Source) at sun.plugin2.applet.Plugin2Manager$AppletExecutionRunnable.run(Unknown Source) at java.lang.Thread.run(Unknown Source)

I can provide more info. Thanks for any advice..