Using a booster will help you make the best of wimpy Wi-Fi at a marina. Most marinas have some sort of Wi-Fi connection available (whether it’s paid or included in the price of docking your rig). But the quality of marina Wi-Fi varies widely. A lot of the problems with marina Wi-Fi boil down to high usage, bad network design, lots of interference from metal and glass, and poor technical support. You may need to walk around the dock to get a signal.