• Turn on your PC and printer.
• On the Printer, Press the WiFi button and keep on pressing the WiFi button over and again until the lighting of network lamp occurs.
• Tap on the Black color button and then on the WiFi button
• Ensure sure that the WiFi light is blinking.
• Thereafter, download and install you Canon printer driver on your device,
• Now, tap on the Start settings button from the start screen.
• Select the Connection process and choose Wireless LAN Connection and click on Next.
• List of the network will display on the next prompt screen.
• Now, check and choose the option to Connect Canon Pixma MG3620 to WiFi, and then click on the Next button.
• Choose a network of your choice and on the screen, you need to enter WPAKey and tap on the connect option

Finally, hit on the next option to setup wireless connection for Canon Pixma MG3620