When departing from or arriving at port cities, your eSIM ProZone will provide a strong internet signal. However, during the mid-journey transit across the expansive Río de la Plata on the Buquebus ferry, it is common for the connection to become intermittent or drop entirely. Terrestrial cell tower range is limited over open water. Expect full service to resume upon nearing the Uruguayan coast.
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Will I have internet access on the Buquebus ferry to Uruguay with eSIM ProZone?
Updated April 22, 2026
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