A:AnswerIn order to optimize the speed of the wireless device, the computer being used must fully support it and no other wireless devices are in close proximity, which can affect wireless signal and speed.
A:AnswerYes you must have a wifi connection/service available to connect to. It's a wireless network adapter which merely enables your compatible device to connect to a wifi service/connection (adds wifi connectivity option on your device without having to use an Ethernet). As for the tablet I'm not sure as I don't know what kind you have.
A:AnswerI had geek squad install the software so there be no mistakes, guess what, My computer was 5 ft away from a wifi repeater and it sucked, it’s junk take it back.