Windows 10: How do i fix my wired internet no longer working and saying unidentified network.

recently a powerline adapter that i used broke it still worked just at a quarter speed, one random day it just said unidentified network. i got a new adapter and it still said the same thing I've tried a few things none of them have worked. whenever i diagnose the error with windows it just gives me the error message"ethernet 2" doesn't have a valid ip configuration. I'm forced to use wireless which isn't very good and downloads have been really long 3gb an hour. Any thoughts? I'm willing to share more info if required. Extra note: i think the problem is due to drivers but I'm not sure how

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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!

 

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 .......

 

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.