How to turn on the Internet back after creating a virtual Hyper-v card?

Question

Hyper-V

The domain controller, I am connected on RDP.
I installed the Hyper-V role, rebooted, opened Hyper-V, created a virtual network card according to the guide

Cuts off RDP, there is no reconnection.
I go to the server through the management system, the virtual adapter is created, the settings are exactly the same as on the physical adapter (the adapter itself is empty, there is no ip on it, nothing, just a bridge to the virtual interface), the ping goes to the router, the ping goes to 8.8.8.8, nslookup works correctly, but sites don't load, rdp doesn't connect. I went to the site by ip-address - a white screen (that is, the same behavior as if there was a problem with the DNS, but it does not exist), there are no proxy settings in the browser properties.
I did the same thing on my home computer - the Internet twitched for a few seconds, everything was restored by itself.
I suspect that the matter is in the domain controller, but in my heart I do not understand what is happening and how to fix it.
So far, I have returned the settings to the physical interface, the Internet / rdp work correctly.
upd. A little more digging, eventually set the automatic settings and rebooted. After the reboot, the interface got a different IP address on the same subnet. When setting the old ip as static, the Internet is cut off completely (ping does not go at all). No, there is no other device with the same ip, I checked it in the list of devices on the network.

upd: static IP via DHCP on the router did not let the Internet go.