Thanks for the detailed comment above. As I said earlier, I'm no networking guy! However, before posting I did test on a friend's Verizon FiOS connection, my own Verizon Mobile Hotspot, and also the various message boards I read complaining about speed appeared to be overwhelmingly TWC. I do understand that's not ideal proof. This was just intended to be a share of a quick fix.

Any suggestion to make my blog post more technically sound, I'm all ears! I can't seem to find a conclusion in all the HN comments except that "it could be a bunch of stuff going wrong", and to be honest, I don't have the expertise to find said conclusion.