Honestly, it varies based on resort and location/proximity to wi-fi "routers" within each resort. Wife and I have enjoyed two "working" vacations where we worked during the day from our hotel room and then enjoyed the parks in the evenings. The first experience (AKL - Kidani) was great--no wi-fi issues at all; however, the second experience (CBR - pirate room) was not great--I was unable to connect to my work VPN from our room so finally went outside to the nearby snack QS location and was able to connect w/ no problem. So, you may have to be flexible ... ha!