MK, maybe you didn't see my edit on my last post:
Going into my router administration screen (web based), there's a radio button labeled "Enable the DRHC Server?" The No setting is selected. Clicking the Yes setting fails to change the setting to On. I opened the manual for the router and on page 38 it says:
To set up the DHCP server:
Advance Setting / LAN menu / DHCP Server
Following the directions I'm led to make that same change, from No to Yes. I tried this from a different machine, same result. For some reason I can't enable the DHCP Server.