Samsung Smart TV Remote Problem?

So, My family has had this Smart TV for about 3 years now and this problem has never come up. We never used a cable with the Smart TV but the Samsung Remote still worked fine. Just today, when we turned the TV on a prompt came up asking us if we wanted to set up the universal remote, which was odd. We tried pressing no using the remote but it didn’t work. We used the tiny button under the TV to say no but the prompt came back on. The way to set up the universal remote required a cable box (if im not mistaken), and we don’t have one since all we used the TV for was Netflix. Is there any way I can reconnect the remote back to the TV w/o a cable box? This has worked fine for 3 years until today.