So that the Community can better assist you, we will need to know more information such as what operating system (Windows/Mac OS) you're using and what connection method you're trying. Any other details you can provide will only help others better understand the issue and possible solutions.
If you haven't already, try the IJ Setup Tool to streamline the setup process. Get it HERE.
The Community isn't intended for immediate assistance. If your question is urgent, click HERE to visit your My Canon Account to discover your personalized support options.
Please try using the "manual connect" method to connect your PIXMA TR4720 to your Wi-Fi.
To do this, please follow the steps provided in this article:
If you continue to have difficulties, please contact one of Canon's Technical Support Representatives via phone or chat. To contact a Technical Support Representative, please use the link below to log into your My Canon account:
Once logged in, click on your product and then the Get Service & Support button.
When that page loads, click on either the Phone Support button or the Chat Support button.
12/05/2023: New firmware updates are available.
09/26/2023: New firmware updates are available.
08/18/2023: Canon EOS R5 C training series is released.
07/31/2023: New firmware updates are available.
05/18/2023: New firmware updates are available.
03/30/2023: New firmware updates are available.