Why does my iPhone hotspot not appear as an option in the AutoFlex Connect networking page?

Why does my iPhone hotspot not appear as an option in the AutoFlex Connect networking page?

The AutoFlex Connect has a 2.4Ghz Wi-Fi connection. The iPhone Personal Hotspot uses a 5GHz connection by default. On iPhone 12 or later, you can turn on Maximize Compatibility for Personal Hotspot to use a 2.4GHz connection.