Windows 8 Hyper-V 802.1X EAPOL request missing

Hi,

we use 802.1x Computer Authentication in our enviroment.

Our NPS is a Windows Server 2008 R2 SP1 and in our Network Cisco ESW-540-24 Switches. We request PEAP-TLS with computer certificates from our internal Enterprise CA.

Windows 7 and Windows 8 Clients do an authentication over 802.1x and get Access to the corpnet.

But when i configure 1 Hyper-V Switch on my Windows 8 Client, my machine don´t do an authentication over 802.1x.
In Netmon/Wireshark we don´t see any EAPOL request from my Client to the cisco Switch.

Is 802.1X is supported on Windows 8 with Hyper-V? If it´s true how can i configured my Windows 8 hyper-v Client to get Access over 802.1x?

Thanks in advance!