I have a Canon MG5520 and it has worked well for over a year. Now I can only get it to connect to our router if it's sitting right next to said router. Strangely, even when it is 2 feet from the router, it is only showing a signal strength from 12% to 20%. Sometimes it won't stay connected even when that close. Previously, we had it on a separate floor on the opposite side of the house and had no problems.
I changed our router to transmit on a different channel with no success, and the WiFi signal shows 100% on my laptop, which is sitting next to the printer. Any ideas as to what it causing the problem?