Hi Francesca,
Thanks for visiting the Disney Parks Moms Panel for assistance planning your vacation. It sounds like your Disney Resort Hotel Reservation may not be linked to your
My Disney Experience account. If it isn't properly linked, you will only be able to book your
Advanced Dining Reservations one day at a time, at exactly 180-days prior to your vacation. To link your reservation, log-in to your account, then hover over the Mickey My Disney Experience icon in the upper right hand side of your screen. Then drop down to "
My Reservations and Tickets" and click. Scroll down to "Disney Resort Hotel Reservations" and click on the button to "Link Resort Reservation". You will need to enter your confirmation number at this time. Once you have successfully linked your reservation, you should be able to book your Advanced Dining Reservations. You must be logged in to your account in order to book for your entire trip at 180-days prior to your vacation.
I hope this works for you. If you continue to experience issues, I recommend calling Disney Dining directly at (407) WDW-DINE to book all of your reservations at once.
Wishing you magical memories,
Kaylene