That setting only works for scrolling and selecting channels through the guide.
Hello, Ddobrolecki. Welcome to the Xfinity Forums.
rightfooted provided some great advice. If you are just pressing the channel up and down buttons it will try to tune to the next channel regardless of what it is.
Please let us know if this helps or if you have further questions we can help you with.
Ddobrolecki, as I have not heard back from you in some time, I have closed this thread to further comments. If you still need assistance, please feel free to start a new thread.