Rocket0634 there is nothing I can do with that, make an exception in the antivirus settings.
Karalis this is normal, you just need to wait for the others to use this method with the same MACs and the similar wireless adapter (because of the MAC modification in different drivers). The streetpasses you've got is only limited to this method users, so you're few now, but people will come because there is and most probably won't be other way to homepass from windows on fw 9.3
XiaoHuoLong you just need to wait for others to come with the same MAC address range, because actually BASE256 gives different addresses depending on the wireless driver.
GrooBdx you can check the actual MAC by
netsh wlan show hostednetwork