Where is the problem in connecting to the VPN server?

Question

VPN

I want to learn how to deploy a VPN server on Windows Server (in my case 2012 R2). Like any younger brother, he opened Google, entered the desire I needed and began to act, did everything according to the article, but deployed the server on VirtualBox, installed a trial license for Windows Server 2012 R2, the one for 180 days, then added roles and components in the form of AD, further DNS, after already remote connection (VPN). In general, I can’t connect, what could be the reason, explain to the poor fellow.

Answer 1

Is the network in VirtualBox set up as a network bridge?