Parallels desktop virtual machines cannot communicate when Mac has no network connection I have two virtual machines running on Parallels desktop (v11 if that makes a difference).  They are operating in Shared network mode.

When I have a wireless or Bluetooth network connection they can communicate between each other fine.

When I lose that connection (phone tether drops out, flying, etc) the virtual machines no longer are able to communicate with each other.

I have also tried the network in Host Only mode to no avail.

Is there some way I can have these virtual machines communicate with each other even when I do not have an external network connection?
From Parallels Knowledge Base the following indicates an internet connection is required for this to work.  No idea why that would be a requirement.

Network problems in the virtual machine
Article ID: 8978
Created On: Sep 14, 2010
Last Review: Nov 24, 2015
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APPLIES TO:

    Parallels Desktop for Mac
    Parallels Desktop for Mac Pro Edition
    Parallels Desktop for Mac Business Edition
    Parallels Access

Note: Your Mac must be connected to the Internet for virtual machines to be able to connect.