Intermittent Daily Packet Loss and Connection Drops - 92673

Hello, I'm in Southern California, ZIP CODE 92673 and have been getting intermittent packet loss and connection drops on a daily basis.  It usually happens in the late morning or early afternoon when I'm working from home and is proving to be very disruptive as I'm on wi-fi calling and the calls often drop during the middle of a conversation or I lose my Skype session.

I suspect that node saturation might be a factor, but need someone to take a look.  I have used continuous pings to isolate the issue and feel that the problem is occurring beyond my equipment.  I'm hardwired from my laptop to my router which is connected directly to Cox's Cisco DPQ3212 DOCSIS 3.0 2-PORT Voice Modem.  Attached are pictures of the power levels on the modem pings to different hops when everything is working fine.  I'm now working to capturing examples of when the packet loss occurs so you can see where things are failing.  Since I'm using PingPlotter Free, I only have 10 minutes of history, so I will attempt to catch this problem soon. 

So right now I have continuous pings to my router (192.168.1.1) the internal IP of the cable modem: (192.168.1.1), My External Public IP and the first private 10.X address that is a hop away from the cable modem.  I assume this IP is on the node?  TTL for the 10.X address is 254.

While I wait to catch this packet loss, can you take a look at the attached power levels to see if my modem has adequate power levels and Signal to Noise Ratio's?  Also, not sure if it helps, but when the packet loss/drops occur, the power levels on the downstream spike by at least +1 dBmV.

BTW, I replaced the Cisco cable modem a few weeks ago and nothing has improved.

Phil