Extremely poor connection performance with latency, jitter, connection drops in South Scottsdale area.

Me too.  My e-mail with details to cox.help went unanswered, but it's possible there was a fix yesterday.   https://forums.cox.com/forum_home/internet_forum/f/internet-forum/25662/south-scottsdale-may-have-finally-been-fixed---but-probably-too-late-for-me  I'm going to also try Centurylink to compare regardless since it's already scheduled for next week.