Hurray!! Stacey's Internet is working again. All it took was an IP re-set (configuration back to automatic) and a system re-start.
Now I can't really take credit for it, as the success results from the following:
A) What Daddy taught me and working backward from that
B) Stacey's computer needing a very long siesta
That said, IT work is fun. Seems to me like it is usually either tricking the computer into doing what you want, or force it to do what you want.
A good example of the latter is one of the times my work computer went to the blue screen for Dumping Physical Memory, refused to respond to any reasonable tactics, and was promptly unplugged. That worked. At least it worked for a week, I think.
Then I did have to get a "real" IT person in to run diagnostics and handle the scientifically medical end of fixing computers.