If you're an iPhone or iPad user that has updated to iOS 14, you will need to select 'OK' to a new iOS system notification to allow us to connect to your Chromecast via your local network.
Please see an example below:
If you accidentally selected 'Don't allow' and want to connect to Chromecast you will need to delete and then re-install the 9Now app on your device. Then you will have to select 'OK' when you see the system notification.