I can’t get my Wi-Fi router change to wpa2or wpa3. Has anyone had that same same issue. I have a iphone13 promax

See the following Apple articles:

Recommended settings for Wi-Fi routers and access points

Recommended settings for Wi-Fi routers and access points - Apple Support

If you need help with your Wi‑Fi password

If you need help with your Wi‑Fi password - Apple Support

sandydrawers wrote:

I can’t get my Wi-Fi router change to wpa2or wpa3. Has anyone had that same same issue. I have a iphone13 promax

If your router is less than 5 years old it supports WPA2; check the manual on how to change the encryption setting. If it is more than 5 years old it should be replaced.

Note that the setting is on the router, not on your iPhone.

Check the manual for your router and contact the manufacturer.