I am trying to use PEAP Authentication on Wireless on my MacBook Air. I want my Windows VM with 802.1x Certificates to Authenticate using EAP TLS. It appears that the shared WiFi card will only present a single MAC Address to the network and will use the Authentication method of the Mac over the Authentication method of the Windows VM. Group Policy locks down the configuration on the Windows VM so it is configured correctly to use EAP TLS. The only work around I have found so far is to use the WiFi card for my Mac and a wired USB for the VM. So at this point it looks like I need to physical cards to get two authentication types to work. It is also not a viable workaround. I cannot validate that I can present dual auth scenarios on wired quite yet. We are working on that.