X15 remote stopped controlling x1 cable box

All was OK until the remote was not recognized by x1 cable box. I tried to factory reset, seemed OK, but then I went to pair with the cable box, pressed the key combination, with the light color change, but the screen on TV didn’t show ANY NUMBERS TO ENTER!

THIS IS BEYOND ANNOYING!  Somehow I get it to work again for a number of days, and then the problem is back!