If YouTube AirPlay isn’t working, update the app with any available software updates, update the secondary device you are AirPlaying to with the most recent software, reset your router, and use AirPlay through the app itself rather than through system preferences.
If YouTube isn’t working on your iPad, reset your network, disconnect any other devices connected to the network that are not in use, check to see that your network speed can support the type of videos you are playing, and select the option to go into “Desktop Mode.”
If YouTube isn’t working on your Firestick, try clearing the cache of the app, update the app by enabling the option of automatic updates within your Firestick, confirm that the Firestick is connected to a network, and connect to a 5G network if available.
If YouTube on your iPhone isn’t working, free up storage space within your phone, update the app with the latest software, check to make sure you have a stable network connection, close out of all other apps before using YouTube, and try clearing the cache within YouTube
If YouTube is still freezing and crashing after completing the previous steps, it may be time to delete and reinstall the application on your Smart TV. This process will differ in steps depending on the brand of TV you have, but by deleting the app, you can get rid of any corrupted data within.
If YouTube is not connecting on your smart TV, be sure that your TV is successfully connected to a network. The process will vary for each TV brand, however, the majority of TVs will have connection information listed under ‘Settings.’ Once there, confirm that a successful connection is made.
If YouTube is not full screen on your smart TV, take your remote, and at the bottom of the video player from within YouTube, tap the full-screen mode icon. Once this has been clicked, the video should immediately expand and you should then be able to watch content on a full screen.
YouTube may not work on Sharp TVs made prior to 2013. For newer models, you may need to update the firmware, reinstall the YouTube app, improve your internet connection, reset the TV or clear the app cache. If the sound is not working, you should alter the audio settings and check all audio cables.
YouTube may not work on a Hisense TV if the firmware is outdated, your internet is poor or too slow, the cache is full or the YouTube server is down. Some videos will not play because they are not available in your region. You may also need to check the TV audio settings if the sound does not work.
If your TCL TV is showing YouTube with a black screen, no picture, or a green screen, a simple fix of resetting your TV could be the solution. To reset your TCL TV, unplug your TV directly from its power source and wait for a full 60 seconds before plugging it back in and trying YouTube once more.