title: Virtualbox bridged network not working
body: <p>I am running the most recent virtual box and created a Ubuntu 14.04 virtual machine. It works with NAT networking, but when I switch to bridged I get the following error: </p>
  
  <blockquote>
    <p>Failed to open a session for the virtual machine class. Failed to
    open/create the internal network 'HostInterfaceNetworking-Realtek PCIe
    GBE Family Controller' (VERR_INTNET_FLT_IF_NOT_FOUND). Failed to
    attach the network LUN (VERR_INTNET_FLT_IF_NOT_FOUND).</p>
  </blockquote>
  
  <p>Anyone have any idea how to solve this, I tried to re-install Virtual Box, and I tried to install on a different computer but it still gives me the same error.</p>