I figured it out!!
My thought immediately was, could there be a process that has taken over the proxy?
There was a process running called Inno Uninstaller or something like that. I couldn't even find it in the App list, so it must be some kind of Malware. Heaven knows how it got there, but when I stopped the process, the proxy went away and everything started working again.
Now I just have to figure out how to clean this crap off the system.
Thank you for your patience. I will add another update if I have more info on what it was and how I got rid of it.
So, you probably DID remove the proxy stuff, but that process (whatever crap it was) put it right back in.