Greetings, DavidReeves! I appreciate you taking the time to reach out to us here on the forums. I hope you are having an amazing day. I apologize to hear you are having issues with getting your remote paired to the new cable box. That's certainly frustrating. For instructions on how to do this please see the following link: https://www.xfinity.com/support/articles/remote-program-the-xr2-or-xr5-to-aim-anywhere. If you still find yourself having issues, feel free to send me a PM with you first and last name so I may further assist you.
To send a private message, please click my name "ComcastMichael" then select "Send a Message" on the right side.
Hello, DavidReeves. I have not heard back from you and hope you were able to get the remotes paired. If you still need assistance, please feel free to start a new public thread.