I am able to get to a site that is CAC authentication required. However, when I try to download a video from the site or Save Target As.. from the site I get Internet Explorer errors. So, when I go to our local proxy server and do a policy trace I get the results shown on the attachment. My questions is does the ERR_PROXY_AUTH indicate an error on the server that is hosting the website or is there something in the IronPort I need to configure? Thanks in advance for any assistance.
There looks to be a problem with your Policy Trace, you need to put the user that is being denied in, it's not picking up an identity or an access policy.
When I do the policy trace I put in the user's IP address. Users log on with a common access card. Are you saying I need to put in a username somehow also? Does the ERR_PROXY_AUTH from the screenshot appear to be a configuration of the proxy itself or the server hosting the website the user is trying to go to?