The error appears if the certificate is not trusted. This most commonly occurs if the Certificate Authority (CA) is not yet known to InterScan Web Security Virtual Appliance (IWSVA).

To resolve the issue, export the certificates from Internet Explorer (IE) and import them into IWSVA.

1. Export all Trusted Root Certification Authorities from IE:

   1. Go to Tools > Internet options > Content tab.
   2. Click Certificates and go to the Trusted Root Certification Authorities tab.
   3. Select all root/intermediate CAs and click Export.
   4. Select the Cryptographic Message Syntax Standard - PKCS #7 Certificates (.P7B) format and name the file “from_ie”.

   The exported file from_ie.p7b will be created

2. Upload the file to the /tmp directory of IWSVA.

3. Log in to IWSVA as root user, and import the file by executing the following commands:

   cd /usr/iwss/bin
   ./import_cert.sh /tmp/from_ie.p7b

To further analyze the Certificate Failure, you may contact Trend Micro Technical Support for assistance.