Wi-Fi to Cellular Transition

Hello lindatonya,

Thanks for reaching out to Apple Support Communities. We see you have some questions about your iPhone not connecting to cellular data when you're off Wi-Fi, and we'd like to help.

Based on the steps you've taken already, we recommend resetting the network settings on your iPhone, to see if it works as normal after. The following link can explain it, and this will help refresh the cellular and Wi-Fi connections to ensure they're working the best they can: If your iPhone or iPad won't connect to a Wi-Fi network - Apple Support

If you're using iOS or iPadOS 15 or later, tap Settings > General > Transfer or Reset [Device] > Reset > Reset Network Settings.

If you're using iOS or iPadOS 14 or earlier, tap Settings > General > Reset > Reset Network Settings.

This also resets Wi-Fi networks and passwords, cellular settings, and VPN and APN settings that you've used before.

Let us know if this helps.

Regards.

Hi lindatonya,

In that case, it'd be best to contact Apple directly to Get Support. They will be in the best position to support you.

Sincerely.