Hi, I'm John! I will help you with this.
If you haven't tried it yet, make sure the printer and the Windows 11 laptop are on the same Wi-Fi network. If your router has both 2.4 GHz and 5 GHz, try the 2.4 GHz network, as many printers have trouble with 5 GHz-only networks.
On the printer, press and hold the Menu/Wireless connect button for about 3 seconds, then continue the setup from the Canon setup app or Canon’s setup page.
If issue still persists, to help narrow down the issue:
- Does the printer show connected to your Wi-Fi, or does it fail before that step?
- Are you using a 2.4 GHz Wi-Fi network or a 5 GHz network?
- Do you get any error message from the Canon assistant or from Windows when adding the printer?