It's a Dlink 614+.
I looked in the router configuration screens at DHCP, and find a dynamic DHCP client list. It contains the names of all the computers, plus their local 192.168 etc. IP address.
The thing that's still aggravating is that that table DOES recognize that "KITCHEN" is 192.168.0.100. Yes, KITCHEN has the printer I'm trying to print to, and it's USB connected.
Do you think my computer is having trouble reading the dynamic DHCP client list? I can ping 192.168.0.100 but I can't ping KITCHEN. Or, is my computer looking at some other table than DHCP client list, and that other table is messed up?