On Windows 7 Professional SP1, using Firefox 4, we can get to the following website "https://amps.mpsa.mil
". Using IE9 or IE8, we cannot get to the site. I've lowered all of the security setting in IE, as well as adding the site to our trusted sites. We have the DoD Root Certs installed, just in case. I've reinstalled IE. This happens on all of our new Lenovo PCs and Laptops, but a random Dell laptop running XP is able to get to the site running IE8. I've checked an unchecked all versions of TLS and SSL, and also other advanced security settings. I am at a complete loss as to how this is possible. I cannot test using Chrome or Safari. We are behind an ASA and a Cisco 2900 series router, but like I said, on a different hardware/software platform, IE8 does work. We are using McAfee VirusScan, Windows Defender, and Windows Network Firewall. I am attempting to download and install XP Mode Virtual Machine from Microsoft to test with.