My mac OS X 10.10.5 won't connect with my Canon MG2200 printer/scanner
The two devices worked well together until we changed our wifi network. I know it is fixable because it has happened once before and apple care helped me resolve it. It was not an intuitive fix.
MacBook Pro (Retina, 15-inch, Mid 2014), OS X Yosemite (10.10.5)