I would suggest going to the Canon website and find the section that has to do with drivers, for your printer, then use the link provided there for setting up your printer. I recently went through a scenario similar to the one you described and that...
I had almost given up on this printer because of the wireless printing problem. I was having the same problem most others have described, but decided to start over again and do a thorough search of the issue. I eventually came across a Canon video ...