[Solved] Upgrade from 16.04 to 16.10 Lost Ethernet

So - I followed the instructions about updating from 16.04 to 16.10 - and all seemed to work fine - everything downloaded, and all that and then I rebooted and when I came back to the desktop, I had no internet. Now, since it just worked 15 minutes ago while it was downloading all the 16.10 stuff, I’m not sure what happened or even what to do about fixing this…

Any ideas?

I cheated - since I had wireless on this PC - I just downloaded 16.10 and installed that