ZyXEL Communications GS-2724 - Manual (Page 318)

Appendix C Pop-up Windows, JavaScripts and Java Permissions
GS-2724 User’s Guide
318
45.3.0.3.1 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.
Figure 132 Java (Sun)