Same issue here...
3 different PCs. 2 x windows 8. The other runs windows 10 with a Nvidia GTX1080Ti. All using google chrome, Microsoft explorer and firefox. All 3 internet browsers stutter and are choppy. All ethernet connected.
My next attempt was to stream using my Android phone using the Xfinity stream app since that works smoothly. Unfortunately Xfinity shuts down the ability to cast to another device. So I'm stuck, I dont know what else to do. I do not rent a set top box from Xfinity and my only source is via xfinity stream on the web browsers.
3 different PCs. 2 x windows 8. The other runs windows 10 with a Nvidia GTX1080Ti. All using google chrome, Microsoft explorer and firefox. All 3 internet browsers stutter and are choppy. All ethernet connected.
My next attempt was to stream using my Android phone using the Xfinity stream app since that works smoothly. Unfortunately Xfinity shuts down the ability to cast to another device. So I'm stuck, I dont know what else to do. I do not rent a set top box from Xfinity and my only source is via xfinity stream on the web browsers.