How to Fix "PDP Authentication Failure" on your eSIM

If you've encountered a "PDP Authentication Failure" message when using your eSIM, you're not alone. This common error has several straightforward solutions. Let's understand what it means and how to fix it.

What is PDP Authentication?

PDP (Packet Data Protocol) Authentication is the process your device uses to connect to a mobile network for data services. When this authentication fails, your device cannot establish a proper connection to access mobile internet.

Common Causes of PDP Authentication Failure

This error typically occurs due to:

• Incorrect APN settings

• Issues with your eSIM configuration

• Depleted data balance

• Network connectivity problems

• Account-related issues

How to Fix PDP Authentication Failure

1. Reset Network Settings

If the above steps don't resolve the issue:

For iPhone:

• Go to Settings > General > Transfer or Reset iPhone > Reset > Reset Network Settings

• Restart your device

For Android:

• Go to Settings > System > Reset options > Reset Wi-Fi, mobile & Bluetooth

• Restart your device

For Samsung:

• Go to Settings > General management > Reset > Reset network settings

• Select your SIM

• Tap "Reset settings"

Note: This will remove saved Wi-Fi networks, passwords, and reset all network-related settings.

2. Check Your Data Balance

A common reason for authentication failure is running out of data:

• Go to Manage > Details in the RoamFlux app

• Verify you have data remaining on your plan

• Top up if necessary to restore connectivity

3. Review Your eSIM Configuration

To access all necessary information:

• Navigate to Manage > Details > Install eSIM

• Scroll through to find APN details, supported networks, and setup instructions

• Follow the configuration steps precisely

4. Connect to a Supported Network

Ensure you're connected to the correct mobile network:

• Check your eSIM details page under "Supported Networks"

• Manually select the recommended network in your phone's settings

Still Experiencing Issues?

If you've tried all these steps and still encounter PDP Authentication Failure, contact the RoamFlux support team. Our experts are ready to help you diagnose and resolve the problem so you can get connected quickly.