After upgrading to Android Pie, it is now impossible for me to cast to my TV, watch web videos with the Samsung video player, or even save videos. I also got several other problems (including lag) after upgrading to Pie OS. I tried contacting Samsung, but they essentially refused to help, and the live chat also bugged out, meaning even after waiting for a long period of time, I was connected then disconnected, forced to wait for another long period of time.
EDIT: I tried restarting the Sony Android TV, tried clearing the cache on Google Play Services, restarting my phone, clearing the cache partition on my phone, and updating the TV's Operating System to the latest version. Still have the same "casting screen to [tv] has ended" issue. Maybe it's to do with Sony's firmware.
@flamebird786 My Wi-Fi speeds are very fast, and there doesn't seem to be any problems with internet lag. In terms of devices, I use the "AirScreen" app to allow my Apple devices to mirror to my TV as Apple is not natively supported for screen mirroring on my Sony TV.
