OK, so last night I tried again with the same results. I even went out to Staples and purchased a new router to see if that was the problem. It was not. Finally, I decided to try going through my home wireless network, which is connected to the Internet. It worked! Apparently there must have been a setting I made (or didn't make) on the stand alone router that prevented Engine Driver from connecting.
I really don't want to use the home wireless network, but for now it's working. Would anyone have any ideas why the stand alone router wouldn't work?
Thanks,
Bob Z