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.
Kohlerâs disease is a rare condition in which the tarsal navicular bone (a bone in the arch of the foot) becomes inflamed. This bone disease is named after the German radiologist who described the condition in the early twentieth century. Kohlerâs disease usually affects children between the ages of three and five. It occurs more commonly in boys than in girls, and is often unilateral, affecting one foot. It is described as an avascular necrosis, or osteonecrosis, in which bone tissue deteriorates due to an interruption of blood supply.