ZyXEL Communications ZYWALL USG 20 Manual page 820

Appendix D Importing Certificates
If your device's Web Configurator is set to use SSL certification, then the first time
1
you browse to it you are presented with a certification error.
Figure 455 Internet Explorer 7: Certification Error
Click Continue to this website (not recommended).
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Figure 456 Internet Explorer 7: Certification Error
In the Address Bar, click Certificate Error > View certificates.
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Figure 457 Internet Explorer 7: Certificate Error
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ZyWALL USG 20/20W User's Guide