I am also facing the same issue.I have lost the ability to print wirelessly. I can still print using a USB cable. My MBP is not recognizing the printer. The printer is flashing an error light that looks like an antenna. I think this is what you call a Wireless LAN issue, but I am really a little lost here.
I downloaded and reinstalled the printer driver from the Canon site. Didn't help. Not sure what terms to use in a google search.
Any thoughts?
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