###If you have a Mac:
Open Terminal and type in:
sudo ifconfig en1 lladdr 00:aa:bb:cc:dd:ee
Hit Enter and type your password. Reconnect to the hotel Wi-Fi and you’ll be seen as a new device, with a brand new free Wi-Fi period. Change the number separated by colons to anything between 00 and ff to create new ‘identities’ on the hotel Wi-Fi system, as often as you like. Voilà!
###On Windows (depending on if your network card allows it):