ZyWALL 5/35/70 Series User’s Guide
657 Chapter 52 Troubleshooting
Figure 409 Security Settings - Java
52.5.1.3.1 JAVA (Sun)
1 From Internet Explorer, click Tools, Internet Options and then the Advanced tab.
2 Make sure that Use Java 2 for <applet> under Java (Sun) is selected.
3 Click OK to close the window.