1. Check your internet connection

– Make sure your router device is plugged in and securely connected to your modem device
– Check your wi-fi is on and the connection is set to 'allow'
– Make sure you have a good signal strength
– If you’re using an ethernet cable, make sure it is securely plugged into your device and router

2. Check the app’s system requirements

– Ensure your Smart TV is compatible with the app
– Check the software version in your Smart TV settings
– Contact the app developer for confirmation with any specific compatibility issue

3. Check the app’s version

– Install the latest version of the app that’s compatible with your Smart TV
– Uninstall and then reinstall the app if a new version is available

4. Reset your Smart TV

– Switch off the Smart TV from the main power switch
– Turn it back on after at least 10 minutes
– Download the app again, restart your TV and then try using the app