Frequent Packet Loss with no support

I've been having issues with Cox ever since moving across town.  My packet loss and the variation of my ping is unreal.  I've had a tech come out to look and we've ruled out the connections within the home are the issue.  I purchased a brand new modem so that Cox would get off my case about it being my modem, and I am still experiencing the same problems.  I have several tracerouts and log files of continuous pings to show the packet loss and latency variations.  I see some as soon as the second and third hop.  This issue is beginning to consume most of my day, and it's really frustrating.  My speculation is that it's a oversaturated node issue, just hoping to get some answers and a resolution. If that doesn't work, I'm off to file an informal complaint, then formal, and so on until it's resolved.