As a comcast customer, I've noticed that if I am having a problem with streaming video that if I go to speedtest.net, the video streams fine after the initial ping test from speedtest.net. It will be fine for a few moments (seconds to minutes), but will slow down or stutter again eventually. A fresh visit to speedtest.net again corrects the problem. I have a hunch that a visit to speedtest.net will disable traffic sh…
If Speedtest had more integrity, ISP-owned servers would be deprioritized.