In my work travel days I stayed in several hotels that used a similar box that passed their Internet connections to all the rooms in the hotel. You picked up the box when you checked in and then plugged it into any wall socket in the rooms... Then you held you head sideways with a strange look on your face when you plugged in a cable into the box plugged into the wall socket on one end and the other end into your laptop... These were not WIFI signals back then but direct connections...
Actually it worked pretty good...
Then when you checked out you gave back the box...
Roy Ken