No internet access

I ran on macbook ->virtualbox->whonix-gw, put Adapter 2 -> Bridged Adapter -> the menu item that disappears when I disconnect the Ethernet wire (en7: USB. 10/100/1000 LAN).

No internet appears on the workstation host os(Desktop->Ubuntu), what am I doing wrong?

I read the documentation on Physical Isolation, but I never figured out what to do.