I own my own DVR, which is a Pace RNG200N. I used this with Comcast from 2016 until Jan 2020. Then evidently Comcast changed the coding so that it would no longer record programs. When I push the "My DVR" button I didn't even have access to the unit. The only way the box would operate is if I signed up for DVR service (for an additional fee). Then it would work again. Does anyone know if there is a way to change settings to fix this problem?