Hello,
There are three ways to solve this:
• Method 1: Purchase an SSL certificate issued by a well-known CA and import it as the device certificate. This method can eliminate the security warning without the need of importing any CA certificate to the terminal.
• Method 2: Use a certificate making tool (such as xca) to make a CA certificate and a device certificate, import the device certificate to the firewall and install the CA certificate on the terminal.
• Method 3: The end user adds the address to the list of trusted websites.
Internet Explorer > Internet Options > Security > Lower security level
Choose Internet Explorer > Internet options > Advanced and deselect Warn about certificate address mismatch* and Check for signatures on downloaded programs.
Choose Start > Run > gpedit.msc > Local Computer Policy > Computer Configuration > Administrative Templates > Windows Components > Internet Explorer and enable Turn off the Security Settings Check feature.
Please let me know if this is workful.