If your Canon Printer Setup is not working, several issues could be causing the problem. Ensure that your printer is properly connected to a power source and turned on. Check if the USB or Wi-Fi connection is stable. Install the correct drivers from the official Canon Printer Setup website. Verify that the printer is selected as the default device in your system settings. If the setup process still fails, restart your printer and computer. Also, check for paper jams or low ink levels. Updating firmware can help resolve compatibility issues. Follow the on-screen instructions carefully to complete the setup successfully.