I can't connect my iphone to appletv

1. Check that your iPhone or iPad is on the same Wi-Fi network as your Apple TV or AirPlay-compatible smart TV. On your iOS or iPadOS device, go to Settings > Wi-Fi. On your Apple TV, go to Settings > Network.
2. Make sure that your iPhone or iPad is updated to the latest version of iOS or iPadOS, and your Apple TV is updated to the latest version of tvOS.
3. Restart your Apple TV or AirPlay-compatible smart TV. Also try restarting your iPhone or iPad.

 Set up the Apple TV Remote on your iPhone