Windows 10: Unidentified network - No internet

Ok so i bought a new PC, installed windows and when i entered my dekstop i couldn't connect to the internet. My ethernet cable worked perfectly before and after trying to reinstall the drivers many times i still can't figure it out. I bought a new cable and it still isn't working. When i troubleshoot i get the error "ethern doesn't have a valid IP configuration". I even reinstalled windows 10 but it still can't connect. Help would be amazing. Thanks

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Unidentified network no internet access

Followed all the steps still isn't working. The only difference in network is that before it use to show "Unidentified network" and after giving the IP's its showing my routers name then "No internet"
When I use this cable and port on my other Toshiba laptop it works fine.

 

Working Internet Connection showis as Unidentified Network

....... thanks for the suggestion.

I added the key to the registry like you described, but it made no difference .......

 

Internet connection works but still "Unidentified Network"

My wireless internet works but just saw when checking control panel/network connections  it says — unidentified network. There are lots of discussions about "Unidentified Network" but it is always about that there is no internet access whatsoever. My
tech hotline just said that this is a Microsoft issue. Network driver is Realtek (10.8.311.2016). Windows 10, Version 1607, Build 14393.0. Thanks for any suggestion!