Internet Issues - Consistent Lost Packets North Phoenix, Arizona

I'm in North Phoenix also and I am having problems also. Since the big push to bring in 1Gbps service to the area all the old infrastructure problems are showing up. The backbone carrier speed has increased a lot which also raises the noise floor, a lot. I think that Cox may be interrupting the data channel to try and get performance data on the cable nodes and that probably is not working out vary well. 

https://www.cablelabs.com/insights/cable-broadband-technology-gigabit-evolution/