If the license of the PuttView application cannot be validated, it might be because the Internet connection could not be established properly. Make sure to check the Internet connections of the computer and then the router following these steps:
Make sure the tablet is connected to the Wi-Fi “PuttView” (Check Wi-Fi button on the bottom right)
Ensure the computer is connected to the router with an ethernet cable.
Start the PuttView app again and check if the problem is resolved.
Note: If the problem persists, please contact PuttView support.