Can't connect to host drive from Hyper-V VM when using external switch

Source: superuser.com --- Sunday, April 30, 2017
I have a Windows 10 Pro machine (Creators Edition, build 1703) with Hyper-V installed, and a Win 10 Pro VM (same build). Everything seemed to be working fine at first, when the VM was using an internal virtual switch. I changed that to an external switch hooked up to my Wifi, because I needed Internet connectivity. But now I can't access shared folders on the host. I have network discovery and file/printer sharing enabled on both the host and VM, for all network types (private, domain, public): In Explorer on the VM, I can see the host machine show up under the Network tree. But trying to access anything on there results in an error. I do have a shared folder on the host drive D, which I've managed to access before. ...

from Windows http://ift.tt/2qu7htA