Can’t update I phone xr says I don’t have internet connection when I do when the upda

Force Restart your iPhone, then try again:

To force restart iPhone X, iPhone XS, iPhone XR, iPhone 11, iPhone 12, or iPhone 13, do the following:

Press and quickly release the volume up button, press and quickly release the volume down button, then press and hold the side button. When the Apple logo appears, release the button.

You have direct Wifi or are you using a Hotspot? If using a Hotspot, that won't work. Also, if you have a VPN installed, turn it off.

If you don't know what a VPN is, you likely don't have one, but they do often cause issues with updates.

Is your phone plugged into power and the battery charged above 50%?