Hi everyone, quick story to detail my exact problem, though this thread
showed the same problem with no working solution for me:
I installed Win8 on a separate partition (use Windows 7 Ultimate x64 normally) and was using it. It worked fine. I connected my iPhone to charge it when the phone automatically activated a tethering app. This instantly switched my wired network connection to the USB connection, which I immediately disabled. As soon as I did that my wired connection (my hard wire internet, not the tethered iPhone connection) stopped working and showed the network only as "Unidentified network). Thus the error.
Now I followed all of the instructions in the previously linked thread. I even reformatted my hard drive, to no avail. Microsoft support wants me to pay (not gonna happen). Furthermore, I know it isn't a router or actual network issue because my desktop is the only machine with that problem. My xbox 360 was streaming TV over the same network when it all occurred, and it is doing so as I type this. I switched the cables, obviously rebooted multiple time, the whole nine yards.
What makes it worse is every time I try to diagnose the problem, Windows just tells me to reset my router. I even tried that, but obviously it didn't work. After every reboot my IP changes back to a 169 address (169.254.65.16). Every time I manually set it, no change. It seems like no matter what I do it won't get fixed.
The only thing Microsoft support said I should do is search for updated drivers
for my NIC. This shouldn't be necessary since I reformatted once before and I didn't need to update my drivers to access the internet.
I'm about a day away from just scrapping the whole thing for parts. Any help is greatly appreciated.