Are you controlling it by aiming (line of sight) or do you have an emitter stuck to the front?
Your new cable box might have different codes, but they may not have changed.
If there is an emitter, it probably got placed in the wrong spot. You only have a spot about as big as your little fingernail to line up the emitter properly.
There is no truth anymore. Only assertions. The internet world has no interest in truth, only vindication for preconceived assumptions.