ZyXEL Communications 802.11g ADSL 2+ 4-Port Security Gateway HW-D Series - Manual (Page 410)

P-662H/HW-D Series User’s Guide
410 Appendix G Importing Certificates
1 In Internet Explorer, double click the lock shown in the following screen.
Figure 243 Login Screen
2 Click Install Certificate to open the Install Certificate wizard.
Figure 244 Certificate General Information before Import
3 Click Next to begin the Install Certificate wizard.