If you intend to use it more than once, you should change your ip too i guess.
A few steps for changing your IP address fast:
Computer connected directly to a cable or DSL modem
Get to a command prompt. (START, run, cmd). Start Menu Run Box Type "ipconfig /release" (without the quotes, on the command line by itself). Shut down computer. Turn off computer. Turn off all ethernet hubs/switches. Turn off cable/DSL modem. Leave off overnight. Turn everything back on.
For networks using a Router
Log into the router's admin console. (Often http://192.168.1.1/) Release the IP address (method varies by router manufacturer) Turn off router, ethernet hubs/switches, and the cable/DSL modem Leave off overnight Next day, turn everything back on
If you are using a cable/DSL modem and a router, you may wish to connect your computer directly to the cable/DSL modem. Please note that this could significantly impact your system security.
If you have a router and you're still not having any luck, check to see if there is a "Clone MAC Address" option. Using it should change your IP address; however, in most cases you'll only be able to do it once.