i have a question about cisco ise. please help me. with following port configuration :

authentication event fail action next-method
authentication event server dead action reinitialize vlan 2
authentication event server alive action reinitialize
authentication host-mode multi-auth authentication order dot1x mab
authentication priority dot1x mab authentication port-control auto
authentication violation restrict mab
dot1x pae authenticator
dot1x timeout tx-period 10

client`s pc authorize successful and when client use virtual machine with Bridge network interface , the virtual machine authorize successful ,after it the host dot1x changed to authentication fail. - in nat interface there is no problem . please help me. thanks