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.
Abraham Lincoln hypothesis In 2007, Dr. John Sotos proposed that President Abraham Lincoln suffered from MEN2B. This theory suggests Lincoln had all the major features of the disease: a marfan-like body habitus, large, bumpy lips, constipation, muscular hypotonia, a history compatible with cancer and a family history of the disorder - his sons Eddie, Willie, and Tad, and probably his mother.