ah sorry .. that number 5 points to a permission issue.
netsh winhttp show proxy ..will show you any proxies rather than resetting to none as in last recommendation. This way permission or not.. it will confirm proxy or no.
We have not explored belonging to a domain..but assuming your computer does not.
At this point, I have no ideas. And it is so way past time it was working for you :(
I understand the time thing. It is an ongoing problem - just like my original Win7 to Win8 update. The problem of no internet connection could only be solved by a re-install because it took so long to diagnose, and it did take hours and hours to get nowhere
- just like now!!!
But why is there a permissions issue if I am in administrator mode?