If you use your cell phone modem there is spotty service in Fort Wilderness. Some places are better than others, but it was really frustrating to go from DSL to the slow as molasses modem which, if the wind changed direction, might cut you off.
Our experience was that you COULD get online enough to do a quick check of email and perhaps do a little "essential" surfing, but it is not as easy and fast as most of us are used to.