Fix iOS no internet issues | Ozly eSIM Help Centre

In Settings > Mobile Service make sure the Ozly line shows as Ready and the toggle is on.
Disable Wi-Fi temporarily so the phone prefers the cellular data line.
Under Mobile Data, set the Ozly eSIM as the preferred line and enable Data Roaming (you can do this during install).
Restart the iPhone, then toggle airplane mode on for 15 seconds and off again.
If 5G is flaky, open Voice & Data on the Ozly line and select 4G/LTE before testing once more.
Need APN info? Use the values from your activation email, then paste them into Settings > Mobile Data > Mobile Data Network.
As a last resort go to Settings > General > Transfer or Reset > Reset Network Settings.

Together we travel.