I having a problem with the captive portal authentication function in our Sophos Web Appliance. When a user goes to access the Internet (IE9), it goes to load the captive portal page so they can authenticate with their AD credintials but the page comes up with
There is a problem with this website's security certificate.
They can select the "Continue to this website (not recommended)" option and sign in with no problems. All works fine from there on untill they have to reauthenticate.
I'm using the "Sohpos Certificate" in the Certificate Authority tab and I have imported the certificate into IE on the user computer. What am I missing? Do I need to create my own CA, generate the certificate and import it in as a custom certificate?
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