This object was not a drone. It was too big, maybe 150 ft wide and long, wifi knocked out

Witness was laying on sofa in front of big bay window with view of night sky.  A huge square with unblinking lights at each of the four corners passed in front of the 3rd story window.  The object was about 300 ft. off the ground.  The distance between the corner lights was fairly large.  The object was flying in a single line without wavering up, down, or backwards.  Observer watched it until it was out of view.  It was travelling in a southerly direction.  The first reaction was that it was a UFO.  Had no doubts when looking at it.   Witness researched drones but didn't see any pics of drones that resembled the craft.  Besides the object travelled in a very straight line.  The object was flying over the inlet, and was just left of a shipyard.  About 20 minutes after it flew by the wifi went dead and the computer could not be found.  Then the computer showed up again and was secure and connected