Jetpack will not work in Puerto Rico because it is not a CDMA capable device and PR is a CDMA only network.
It was never advertised of working outside the US and you could have called to check.
Hello there, adamjlim! Staying connected is essential, and we are concerned to hear you are not able to connect. Don't worry, help is here! What exactly happens when you try to connect? Are you getting an error message?