Just off a tatl HA cruise. They, like most cruise cos, they block using voice or streaming video on their internet service. Though HA did offer an “upgrade”
We got an ATT cruise package which had a set price for entire cruise. This utilized the ships cell service. When I needed internet, just used data roaming, and when needed on our ipad, enabled hotspot. While pricey at $100 for the cruise (18 days), as it’s a cell signal, didn’t have to worry about the insecurity of the public (but paid) wi-fi.
On this same trip, In spite of warnings, my spouse did use the public wifi at St Regis in Maldives, and got her SPG account hacked.