I run a random number generator but the outer loop only runs once

Question

This is where I'm currently at and I've looked up code very similar to this but they all seem to have something different that sets them apart. I feel like my mistake is right in front of me yet I'm too blind to see it.

Here is my code:

#include <stdio.h>
#include <stdlib.h>
#include <time.h>

int main()
{
    srand(time(NULL));

    int rnum = 1 + rand() % 1000;
    int guess = 0;
    char answer;

    printf("Would you like to play (y or n)?\n");
    scanf_s("%c", &answer);

    while (answer == 'y')
    {
        printf("I have a number between 1 and 1000.\n");
        printf("Can you gueess my number?\n");
        printf("Please type your first guess.\n");
        scanf_s("%d", &guess);

        while (rnum != guess)
        {
            if (rnum > guess)
            {
                printf("Too low. Try again.\n");
                scanf_s("%d", &guess);
            }
            else
            {
                printf("Too high. Try again.\n");
                scanf_s("%d", &guess);
            }
        }
        printf("Execellent! You guess the number!\n");
        printf("Would you like to play again (y or n)?\n");
        scanf_s("%c", &answer);
    }
    return 0;
}