Samsung

I have 4 Samsung TVs. 2 I removed boxes from about a year ago and went to the xfinity stream app. One is a bedroom tv used minimally and one is a basement tv used here and there on weekends. About two weeks ago, the Xfinity stream app quit working. It freezes on the purple screen with three bubbles loading. I have to manually restart the TV by holding the power button until the model shows up. Things I’ve tried 

1) restart tv

2) restart modem

3) delete app/reinstall

4) make sure tv has latest updates 

5) read forum posts with their suggestions 

nothing works. I’m open to any suggestions. I refuse to pay $250 a year to bring back the boxes for TVs that barely get used The TVs are new enough to run the app. Every other app like Hulu, HBO, Disney, etc. run fine on the TV. Please help and thanks for reading.