Well, I'm at a bit of a loss. Neither the ethernet card nor the wireless card are allowing you to connect to the network. The only other thing I can think of is some software issue - either something starting with the system that's causing the problem (not likely) or malware of some form. Can we try running a full scan with Malware Bytes or Super AntiSpyware as well as your Anti Virus utility please? I saw you are running spysweeper, but still..... It's a bit of a longshot but it's worth a try.
And of course if anyone else following this thread has any thoughts....... please jump in.