Do you have a green smiley in the bottom right corner? If not you should address that. Check the settings and see if UPnP will work, if not you should port forward manually.
And double check that you are using the correct IP address, and make sure that person have ad hoc server running(either built-in in the emulator or a stand alone version that is in the background).
And double check that you are using the correct IP address, and make sure that person have ad hoc server running(either built-in in the emulator or a stand alone version that is in the background).