To get back to the original question :  My experience is this :   On Royal, I used a HOOTOO travel router.  Paid for the one person unlimited package (cheapest).  Went to the cabin, hooked up the router, authenticated with my ipad via router and then proceeded to connect the other 3 devices.   This worked out well for the entire cruise.  Amazon for $34 CAD.  I'll be on NCL in 3 weeks and plan on using it in the same fashion again.     There is a possibility tha