Have you re-run the Set Up Utility?
It gives you the opportunity to re-enter the wireless password.
Bay Area - CA
~R5C (220.127.116.11) ~Many Lenses ~DxO PhotoLab Elite ~Windows10 Pro ~EVGA RTX 3080Ti FTW3 Ultra
~ImageClass MF644Cdw ~Pixel6 ~6D2 (v1.1.1) retiring
I recommend to have this issue looked at by our support team. Canon does have a chat team that would be happy to assist you with this issue. Please click HERE and in the chat/ask a question box that appears, ask the chat bot to speak to a live person. Our chat agents are available Monday-Friday 8:00 am to 8:00 pm ET, excluding holidays.
We look forward to hearing from you