ZyXEL Communications NBG-419N v2 User Manual page 201

In Internet Explorer, click Tools, Internet Options and then the Security tab.
1
Figure 143 Internet Options: Security
Click the Custom Level... button.
2
Scroll down to Scripting.
3
Under Active scripting make sure that Enable is selected (the default).
4
Under Scripting of Java applets make sure that Enable is selected (the default).
5
NBG-419N v2 User's Guide
Appendix A Pop-up Windows, JavaScript and Java Permissions
201