This is not just a wireless problem, I also tried a wired connection and it didn’t work either. Something is fouled up somewhere.
Am certain someone will spot the broken strand causing nonconnectivity.In one wifi glitch we installed a hard line but apparently your virus and various tools have disrupted something.
Here is a site--which may be in the 92 posts I've read--which offers various tools and advice, all seeming useful:
Removal instructions for ping.exe
This is posted by a guy with 55,000 posts on these tech matters. Wouldn't we all like to talk to somebody like this.
I'll poke around.
Just remember: Never give up. Never surrender.