We use Comcast while we are there for the winter. Here's their vacation policy for FL:
comcastflorida.com/seasonal
If you have Comcast for internet service elsewhere, you should be able to use the xfinity wi-fi program IF you can find an available comcast wi-fi hotspot in your area.
XFINITY® WiFi by Comcast | Wireless Internet on the Go
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Not sure if I have free time...or if I just forgot everything I was supposed to do!