You need 3 things.... 1) Do you have a laptop with you? 2) Can you connect to internet with your laptop 3) Are you comfortable doing a little work to earn that double XP?
I assume you have a laptop since your were able to ask us for help...so here goes:
You are going to need to find a registered MAC address, connect your computer to the hotel network, go to any web page and then find your MAC address.
Connect the ethernet cable to the hotel inlet and boot up your computer. You can find your MAC address by clicking on Start on your computer, next click on Run and type CMD and then click OK. You will then type in getmac and press enter. This will take you to Command prompt and it will show you your active Physical Address should be something like- 00-34-19-61-65-7A -write it down.
We are almost there...
Now disconnect the computer and connect the ethernet cable to your Xbox 360 and power it up. Do the following:
Go to MY XBOX (center button)
Select System Settings
Select Network Settings
Highlight and select Configure network
Move to the right to additional settings
Select Alternative MAC Address and enter in your Mac Address...press start
Make sure your IP settings and DNS settings are to automatic and you are ready to TEST XBOX LIVE CONNECTION from the Network settings. You should be good to go xdeceiverrrr..Game on.