mac airplay to tv
My desktop is High Sierra 10.13.6 (mid 2012). I am having issues airplaying to the new AppleTV4k. Do I just need to upgrade?
Apple TV 4K, tvOS 17
Question marked as
You are not providing any details such as exactly what you have done. Perhaps rereading:
Stream audio and video from your Mac with AirPlay - Apple Support
Also, any iMac older than a 2018 is obsolete (meaning it will not run current versions of Mac OS and parts are difficult to locate) so it may not be a bad idea to consider replacing your 2012 to a more up-to-date machine. You have LOTS of options available to you including another iMac, a Mac mini, even a laptop such as a MacBook Air or a MacBook Pro. Any new Mac would be a considerable upgrade over any 2012 Mac! If you decide to take that route, below are instructions for migrating from the old Mac to a new one.
When you buy a new Mac the easiest, quickest and most reliable method to migrate from the old Mac to the new Mac is to simply connect the old Mac's Time Machine External Hard Disk to the new Mac using a USB cable before you turn on the new Mac. You will likely need a USB A to USB C adapter, you can find them on Amazon for $10 or less. When you start the new Mac for the first time it will startup Setup Assistant (SA), SA will get to a point where it asks if you are migrating from another computer, select Yes and follow the on-screen prompts and it's done! It is THAT simple.
If you have already done SA on the new computer then simply connect the Time Machine External Hard Disk using a USB cable and launch Migration Assistant (MA) which is located in Applications - Utilities - MA. Then follow the on-screen prompts.
The ONLY difference between MA and SA is MA will create a new user account that you need to log into.
Both SA and MA migrate applications (not 32 bit apps), data files & settings. They do not migrate Mac OS itself. Some professional apps such as Adobe and Microsoft apps may require re-installing their apps as they will not allow them to be migrated. As long as you kept the security keys for installing their apps, it is not an issue.
Finally, never EVER use Wi-Fi when doing Setup Assistant or Migration Assistant. Why, it simply fails in most cases. Please read and follow the directions in Setup Assistant and Migration Assistant. If you do not have a Time Machine backup of the older Mac then create one! If you are not aware of Time Machine, please read Back up your Mac with Time Machine and finally if you need an External Hard Disk to use as a Time Machine External Hard Disk then many experience users on these forums prefer the OWC Mercury Elite Pro due to it's reasonable price, high level of quality and ease of use.