FTP Voyager JV - Unable To Launch

Please advise of any tips or hints to get Voyager to launch.

Management Console: Service Release 15.1.4

IE 11 on Win7  64-bit

added URL to trusted sites

JRE 1.8+ restricted to this version due to our main production system compatibility

App Error dialog, Exception tab

java.io.IOException: JNLP Jar download failure.

  at com.sun.javaws.LaunchDownload.validateResults(Unknown Source)

  at com.sun.javaws.LaunchDownload.downloadJarFiles(Unknown Source)

  at com.sun.javaws.LaunchDownload.downloadEagerorAll(Unknown Source)

  at com.sun.javaws.Launcher.downloadResources(Unknown Source)

  at com.sun.javaws.Launcher.prepareResources(Unknown Source)

  at com.sun.javaws.Launcher.prepareAllResources(Unknown Source)

  at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source)

  at com.sun.javaws.Launcher.prepareToLaunch(Unknown Source)

  at com.sun.javaws.Launcher.launch(Unknown Source)

  at com.sun.javaws.Main.launchApp(Unknown Source)

  at com.sun.javaws.Main.continueInSecureThread(Unknown Source)

  at com.sun.javaws.Main.access$000(Unknown Source)

  at com.sun.javaws.Main$1.run(Unknown Source)

  at java.lang.Thread.run(Unknown Source)