2.Open up Wireshark and start a capture for the nic you are connected with.
3.Filter it so you can just see the network traffic your connected to with this (insert filter thingy) If you are having trouble finding traffic or other computers, you can use Angry IP Scanner to see what other computers are on the network.
4.Pick an ip that you think had access and look at the corresponding mac address
5.open up Mac Makeup and select the nic you wish to change NOTE: BE SURE TO SAVE YOUR ORIGNIAL MAC ADDRESS Open up command prompt and type ipconfig /all and save it somewhere.
6.Look at the new mac address and enter in the box in Mac Makeup and click Change.