iPad playback issues

This problem has been occurring for many months and has been reported in this forum and elsewhere on the Internet.   The video freezes but sound continues.  It occurs  both on my iPAD and on my iPHONE .  I've restarted each device, downloaded all the latest IOS updates, removed and reloaded the Xfinity app, I have the latest Xfinity app update and the problem still occurs.  I even downloaded the video to my iPAD thru the Xfinity app and that freezes too.  It is clearly some problem between Comcast and IOS. 

 

Other streaming services including HBO Max, Amazon Prime, and Peacock work just fine.  Please address this problem and fix.