Unidentified network at the domain controller in VirtualBox, how to fix it?

Question

Computer networks

Good afternoon.
I'm starting to understand computer networks, I decided to organize a domain in Windows Server 2008 R2. Installed in the VirtualBox settings (network settings) Internal Network. I registered a static ip (192.168.0.1) for the domain controller, set the dns address to be the same. The following question arose, when starting a virtual machine, my domain is not visible, instead it gives out an "unidentified network", but if you enter the same ip on the command line via Netsh as already set, the network is determined. Tell me what I'm doing wrong. I would like the network to be detected automatically when the computer starts.

Answer 1

Either DNS rises late, or the gateway address is not registered, and without it, the network is automatically determined as public.