I would just like to say for the record: I love my Canon MX922!!! I had problems with the wireless connection as well, and I ended up just running a cable from the router to the printer and changing the configuration from wireless to wired. Probl...
I have the same problem (my printer won't respond after "going to sleep" at night). Every morning I need to turn off the printer and turn it back on again to restore the network connection. I tried power cycling the router, AND THIS WORKS! Why???? ...