Have you done all necessary steps to resolve the conflict? as in, gone to the network connections, right click the network connection and go to properties, go to the internet protocol and click properties, do this on your pc and laptop, and make sure they are not both on the same ip. If they are on auto-detect ip, go to the command prompt and bring up your ip address, and type that into your ip slot for the pc, and then for the laptop type in the same ip except for the last number where you make it one higher.