iPhone 13 Pro Max No Internet Connection

Since I updated to iOS version 16.4.1 I cannot connect to WiFi on my phone or on my tablet (iPad Pro 12.9 4th Gen).

My child has an iPhone 12 Pro Max, and upgraded to iOS version 16.4.1, and had no problem connecting to WiFi. My spouse has an iPhone XS Max and upgraded to version 16.4.1, and has no problems either. It seems to be just my iPhone and my tablet that is affected for some reason. I turned off the Wifi, I restarted, I restarted my modem, selected 'forget this network' set a new password, but nothing worked. I can make and receive calls & texts but anything internet related/Wifi dependent will not function.