I am in the process of implementing machine based 802.1x to my company. I have 2 radius servers and 1 CA. The machines get their certificates via group policy. The group policy is working fine and everyone has been issued their certificates that are supposed to have them. I wait til they get their certificates, then enter the commands for 802.1x on their port. I have about 50 machines that are working as they should, but I have three random machines that will not communicate whenever I flip the port on the switch. The three machines have valid certificates and have full connectivity to the two radius servers and the CA. I do not believe it is a switch problem, because I have other machines connected to this switch that are authenticating properly. Also, I have tried the 802.1x hotfix on these machines with no luck. I am wondering if there is anything that I could try on the clients that would keep them from authenticating. All of my clients are Windows 7 SP1 64 bit. Any suggestions would be appreciated!
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