If you receive a PDP Authentication Failure notification, that means that your device is struggling to verify your eSIM with the local network. This is typically caused by incorrect settings or an empty data balance.
Please follow these steps in order to restore your connection:
1. Verify Your APN Settings
This error is most commonly caused by an incorrect or missing Access Point Name (APN).
- Locate your APN: Go to the Airalo App or website > My eSIMs > Select your eSIM-> View Details > Ready to use your eSIM? → Connect to a network → How to connect.
- What to look for: Find the section APN. Note the exact spelling (it is usually one word and all lowercase).
- Update your phone: Go to your phone's Cellular/Mobile Data settings and ensure the APN field matches the one provided on the installation page exactly.
Note: If you do not see APN information listed on this page, your eSIM does not require manual setup. Please proceed directly to Step 2.
2. Check Your Data & Network
- Data Balance: Ensure you still have remaining data. If your balance is 0 $, the network will reject the authentication attempt.
- Network Selection: Confirm you are connected to the specific "Supported Network" listed on your eSIM details page. If you are roaming on the wrong carrier, it will fail.
3. Reset Network Settings
If your APN and data balance are correct but you still cannot connect, you may need to clear your phone's network cache.
- Navigate to Settings > General > Transfer or Reset [Device].
- Select Reset > Reset Network Settings.
- Restart your device once the reset is complete.
Note: Resetting network settings will erase any saved Wi-Fi passwords and Bluetooth pairings. You will need to reconnect to your Wi-Fi manually afterwards.
If the failure persists after a restart, please contact us via chat in the app or on the website by clicking the chat bubble.
