I am going the same week as OP (week prior to Thanksgiving) and ADRs were not easy to come by. It is Free Dining that is likely the problem. I changed my day plans at 170 days out and am having a heck of a time changing any of our TS meals. However, this has no impact on FP - ADRs are always harder to come by during FD because people who "would not normally pay the money for TS" book them up. Still a slower time to go, which is why Disney offers FD.