The only Canon printer I ever owned was a piece of garbage. For whatever reason, I couldn't just select my home wifi from a list like literally any other network-enabled device. I instead had to select an option buried several layers deep in the menus to have it try to automatically connect to an open network. Only after waiting 5 minutes for this to fail would it show a list of available networks.

Of course, it also forgot the network and password settings every time it lost power, so I had to go through the whole process again after time I unplugged the thing to clean behind the shelf.