As PP said, you may catch a signal in the lobby of some resorts, most likely ones with a convention center.
I don't think Central FL has much free WiFi to begin with.
We keep a wireless router in our OL so no competing for computer time. Many villas only have one hot port & many times it's in the master bedroom.
Internet access is free to members staying on points, otherwise $9.99 for 24 hours.