Just back from DLP, used Wifi the whole trip.
Each place has its own Wifi connection. Sometimes I had to re connect when I changed locations but most times once I connected once it automatically connected as I walked from different locations.
Each Disney hotel has its own connection
Disney Village has a separate connection
Parks are a different connection.
I found some black out spots between the hotels and Disney village around the back check security and the big area between each of the parks and The Village.
I found that if you just kept walking out of black out spot to a specific location the Wifi came back.