I use Windows 8 PRO 64bit and installed the HYPER-V and created an external LAN allowing the host to share NIC . As soon as created the external LAN, i lost the internet connection on HOST, but the virtual Machine is able to connect to internet. If i disable he virtual network and then re-enable it, from network properties, the connection works both on host and on virtual. But if i reboot the host, i'm in the same situation as before, and have to disable and then enable again the virtual network.
Any clue ? It seems i'm not the only one having the issue, but can't find a permanent solution.