Can I share my Wifi connection on my iPad?
Just had the same issue in my hotel in the Dominican Republic, where I enjoy a great snow-free christmas. The hotel locks the DCHP to the MAC address of the first device that connects, thereby limiting usage to one device per paying customer--they think.

Just note the MAC address belonging to the wi-fi adapter of your first device and then you can soft-set that for each of your other MacBooks, Windows laptops or what have you. In OS X you can use…

sudo ifconfig en1 ether &lt;your first device's MAC address&gt;


…and then you are good to go. Turn wi-fi off on your first device. It's not perfect, but at least you do not have to pay multiple fees.