Lisa I have been on this same exact issue for 3 weeks+ now and the same problems have existed where I am for 2 months. I can't even get throughon the phone any more because they say they "noticed issues in my neighborhood" and send me in a loop. The problems absolutely exist, sending a tech once to confirm it may be fine, but when they confirm the packet loss and node issues at the tap (20-60% in my case, TWICE in 2 weeks) then anyone with a brain knows it's not an issue for the tech to come and fix at the house.
Seriously people, these problems suddenly started like 2 months ago and all cox can do is give excuses about "an increase in traffic in your neighborhood." They have clearly oversold and over subscribed nodes. I suggest you cancel and get on with your life. Slower but more consistent and efficient connection is better than this nonsense we've been seeing with no reasonable explanation or projected date of correction.