Check what is actually active
Connect to Wi-Fi and open the provider’s app or account. Confirm that the plan covers Italy, is within its validity and has data remaining. An installed eSIM profile is not the same thing as an active data package.
In the phone settings, confirm the travel line is enabled and chosen for mobile data. For Yesim, enable data roaming on that profile and begin with automatic network selection. Keep the home line’s data roaming off while checking these settings.
Give the connection a fresh start
Switch airplane mode on and off, then wait for the travel line to reconnect. If necessary, restart the phone. Test a new web page with Wi-Fi off so you are checking mobile data rather than the hotel connection.
If a manual APN or network choice is required, use the exact instructions for the purchased plan. Do not guess an APN or copy a value from another provider. A first connection in a new country can take time; repeated profile deletion is not a useful way to speed it up.
Keep the profile and contact support
Do not remove the eSIM as a routine troubleshooting step. Reinstallation or reuse of an activation code may be restricted, and Yesim specifically warns against removing its data plan. Ask support before deleting anything.
Send support the order reference, phone model, software version and the exact error. Screenshots of line selection and roaming settings can help, but keep activation codes and account identifiers private. Use reliable Wi-Fi to reach support and keep an offline hotel address while the connection is being resolved.
