Por cierto hablando del w1500.

Mirar que dice benq en su propia web del WIFI HDMI.

NOTICE:
Please make sure there are no other devices that support 5GHz wireless signals within 3 meters from the projector, as they may potentially cause signal interference and impact the projected image. This includes but not limited to access points/routers, wireless cards/dongles, 5.8GHz wireless mouses, 5.8GHz digital phones, some Wimax products, some Autopass cards, another W1500 projectors which are performing wireless projection, and devices with 802.11AC Wi-Fi. The suggested distance for such devices would be over 3 meters away from the projector.

If you are experiencing serious 5GHz signal interference, which may be indicated by blank or persistently noise, it is recommended that you change the signal source then switch back to wireless transmission to reset the projection. Just press SOURCE on the projector or remote control to display the source selection bar, and select Wireless again to restart the action.

buf.... como tengas wifi en casa, el mobil.. el del vecino... vaya coñazo de tecnología XD