I do not quite understand why things went so crazy wrong with my Internet communications after I did a recovery restart to an earlier checkpoint to get rid of an ICE ransomeware problem. IE10 (and after it IE11) could not access the Internet, Malwarebytes couldn't get its updates, Norton couldn't update either. My Mozilla Thunderbird e-mail would not access the mail servers I use ... but Chrome WOULD access the Internet without a problem. I ran many of the tools recommended elsewhere in this forum to try to solve the Internet connection problem and nothing seemed to find any significant problems and nothing improved my situation.
I finally decided to tell Windows to make Chrome my default browser, and I uninstalled and re-installed Norton Internet Security and re-booted my computer. I ran a Norton Quick Scan just to prove it worked and went to bed.
In the morning I tried to see if the re-installed Norton Internet Security could find and install its updates. IT DID! Malwarebytes also installed its updates! My Thunderbird e-mail also worked, and I could get to all the printers on my home network and access shared files on other computers on the network! IE11 works just fine now. It is as if I never had a problem at all.
In short, GOD SMILED ON ME! ... and I've set a new checkpoint for any future recovery needs. I am happy, happy!
MODERATOR: You may delete this posting and the two related ones I posted earlier as I wrestled with this problem. Their links are shown below.