Yes indeed, its distributed it turns out to use a proxy. To get it NOT to use a proxy, right click on the icon on your deskstop, and find the command line, and remove all but this: "C:\Program Files\Raytheon\AWIPS II\CAVE\cave.exe"
After cave.exe there is an option that needs to be removed. Then it will present a connection window, and you can connect to a standalone EDEX without a proxy.
I also have a fix to make cave work on windows 10. Testing it a bit more but it appears fine. Involves moving some things in the windows environment.
Ray