Was there twice last fall, once on A loop and once on C loop. No WiFi at all. I used my phone as a hotspot for the couple of evenings I wanted to cruise the net.
You would need to go back across the toll bridge to Gulf Breeze to the Starbucks, McDonalds or Chic-Fil-A most likely to get decent free internet. Probably a place or two on Santa Rosa Island, but not sure what businesses offer it.
There are a number of bar and food places on 399 near Ft. Pickens Rd (mostly in the Pensacola Beach Boardwalk shopping center, right in the curve of the road) that probably offer WiFi, you would just have to find them.
Charles
'03 Ram 2500 CTD, 5.9HO six speed, PacBrake Exh Brake, std cab, long bed, Leer top and 2008 Bigfoot 25B21RB.. previously (both gone) 2008 Thor/Dutchman Freedom Spirit 180 & 2007 Winnebago View 23H Motorhome.