I have a Hyper-V farm hosted on Windows Server 2012 which is connected to a company network with Internet access. When I start a VM running Windows Server 2012 that is joined to the external network, thehost machine loses connectivity. This does not happen when I start a VM running Windows Server 2008 R2. Can anyone help me to find the problem? Is there any difference in network configuration between Server 2008 and 2012 that could cause it?
I had to configure the VMs to be on a Private network to avoid this issue but I need Internet access on my VMs.
Thank you.
More info on the configuration:
Host: Windows Server 2012 Standard, the machine has 2 sockets for ethernet but only one is connected, IP address and DNS are obtained automatically (default configuration), the machine is in a Workgroup (AD is not available)