Interestingly, our iPads connected more often than computers on our Russian river cruise, but on Regent there is a problem - may be how the satellite is configured.
The Regent computer room guy on CLEO told me that with iPads unless there is some sort of activity in a ten minute period they log you out in order to reduce load on the bandwidth - I don't understand how they could differentiate whether you are using a laptop or an iPad so not sure if this is true.