There is no way to view which network was selected for the VM while it is running. It is hidden below the Network Adapters item, which cannot be accessed while the VM is active (or suspended). The only way to which network was selected (which could ahve been days ago) is to shutdown the VM, view/change the network adapter, then re-start the VM. Please display the settings in the Property Page.
If you have the Tools installed, in Beta 4 the little icons on the bottom of the screen will tell you... Positioning the mouse over the little network adapter, it gives you the mode (bridge vs. host only) and the name (en0 or en1.)
