Bootcamp: when initializing Windows 10 after successful Bootcamp install, there is no network
If the above answer doesn't work for you, you could click the tab on the left of the window that first says about the unidentified network which says "continue with limited setup". I did this yesterday when doing my own setup and eventually, once Windows is installed and you have entered your username, etc. Bootcamp then installed drivers for the network adaptors amongst other things. Wish I had taken screenshots of the process now.