SOLVED - Remote Wake on LAN with home routers

UPDATE:  I found that Teamviewer WOL worked great if the target computer was shut down for a short time, but did not work after an overnight shutdown.  Further research in the Teamviewer WOL manual indicates that the router needs to have a permanent ARP entry.  My target PC, although it had a fixed address, was still within the router's DHCP range, so my guess is that the ARP entry is deleted after a period of non-communication with the host.  So if you have the same problem, where Teamviewer WOL is erratic, try assigning a permanent address to the host and moving it outside of the DHCP range.