The HPNA light is only on if a device is using that connection, usually a STB connected via coax (can be over twisted pair in rare situations like apartments). It sounds like your setup uses ethernet which would not turn on the HPNA light.
The previous scene is an excerpt from Brain on Fire: My Month of Madness, and just one of many hallucinations Susannah Cahalan experienced in 2009 during her month-long hospital stay, in which she was diagnosed with a rare neurological autoimmune disease, known as anti-NMDA receptor encephalitis.
Early in 1617 Pocahontas and her party prepared to return to Virginia. However, she became ill while in the village at Gravesend. Pocahantas had developed a case of smallpox, an infectious and dangerous disease caused by a virus and leading to high fever.