Remote won't pair with new box
I swapped out my old X1 box for the new ones that support 4K. I hadn't hooked up the new box when I got home, but played with the remote and entered to codes for my receiver and TV.
Yesterday the new TV arrived, hooked it and the new X1 box. Called Comcast to activate the new box, since it wasn't added to my account when I picked it up. They sent a signal, I saw the greeting screen, and when I tried to select the language, nada. Then a gray box popped up saying the remote was paired with another box. On the phone with several agents, each had me press A + D, then punch in 981 to unpair. Nothing.
For context, the remote in question is the XR 15.
Many box resets and much frustration later, I threw my hands up. My old remote DID control my receiver, but it doesnt now. I'm not sure if the service center is open today (July 4th) or not, if so I'll have to swap the remote I guess, I really want TV this weekend.
Any tech minded folks have any insight as to why/how this happened, and how to maybe fix?