Keep trying. 3 years ago I had a res for BWV for the second week of November, boardwalk view, 11 months. Around the beginning of September, I found out there was an important conference at work that week. I looked to change it to the following week, I was able to get an AKV studio, changed my air. Then about a week later, I found out there was a conflict and the conference was changed to the next week. Ugh! Of course, my BWV studio was gone and nothing else was open. I booked a cash room and wait listed. It was 5 nights, Sunday to Friday. I stalked the website and saw a BWV pool/garden studio open for the last 3 nights. Booked it and changed the waitlist. Then about a week later, night 2 opened up, booked it and changed the waitlist to night 1. At about 28 days out, the waitlist came through and I had all 5 nights! Member Services combined them into one reservation.
Don't just trust the waitlist. If you have 5 nights wait listed, all 5 have to open at the same time for it to fill.