My Canon Pixma MG6300 inexpicably stopped communicating with my laptop. I reset the wireless connection; still no communication (my phone has no problem with the network).
I got a Pixma MG5720 and tried to set it up today: same problem! The printer says it's connected to the network, but the computer can't "detect" it.
I ran setup both using the cd-rom and manually, repeatedly. No luck.