To use your Aircard in oversea, please follow below to enable data roaming.
1. Install Netgear Aircard apps on your iOS/Android phone
2. Connect your mobile to Aircard Wifi (wifi name and password shown Aircard LCD display)
3. Open the Aircard app and login (default password is password)
4. Select the "Network" tab
5. Change the "Auto Connect" to "Always"