I am going to do the factory reset now, which may cut me off from you guys for days until I can get my settings reinstalled
OK, I survived the reset to factory defaults. I am so glad I had the 21 screenshots from the original settings and that you folks validated them as being reasonable, so all I had to do was put the router configuration screens on one side and the screenshots on the other and just tweak the settings until they matched.
I had to do major research on the internet (major being about 10 seconds) to find out what the default factory username and password were for a WRT54G2 router (user name = "", password = "admin") before I could get into the router settings. After that, everything went smoothly.
tanstaafl.
(Oh, btw... the router is now working properly in every respect. Just thought you might like to know.

) Thank you!