High Jitter/Packet Loss

Problem: Constant packet loss (tested via pingplotter) and high ping jitter to different sites and game servers with nobody else on the network. Packet loss is guaranteed when testing for 10+ minutes. It is a large enough issue to disrupt online work, VoIP and gaming sessions. Has been happening as long as I've been living here (~1.5 years).

Modem: Netgear CM700

Attempted Tests: 4 different modems, new coax cables, new ethernet cables, different PC, direct connection to modem, no splitters. At least 5 Cox field techs have checked for ingress and says everything looks fine on my end. 

Pingplotter: https://share.pingplotter.com/jApK2DyG3PR

Startup Procedure
Procedure Status Comment
Acquire Downstream Channel 801000000 Hz Locked
Connectivity State OK Operational
Boot State OK Operational
Security Enabled BPI+
IP Provisioning Mode Honor MDD honorMdd(4)
 
Downstream Bonded Channels
Channel Lock Status Modulation Channel ID Frequency Power SNR Correctables Uncorrectables
1 Locked QAM256 4 801000000 Hz -0.6 dBmV 39.4 dB 0 0
2 Locked QAM256 1 783000000 Hz -0.6 dBmV 39.4 dB 105 1
3 Locked QAM256 2 789000000 Hz -0.5 dBmV 39.4 dB 4317 16445
4 Locked QAM256 3 795000000 Hz -0.6 dBmV 39.4 dB 6568 28810
5 Locked QAM256 5 807000000 Hz -0.7 dBmV 39.4 dB 0 0
6 Locked QAM256 6 813000000 Hz -0.8 dBmV 39.3 dB 0 0
7 Locked QAM256 7 819000000 Hz -0.8 dBmV 39.4 dB 0 0
8 Locked QAM256 8 825000000 Hz -1.2 dBmV 39.2 dB 0 0
9 Locked QAM256 17 879000000 Hz -1.7 dBmV 39.1 dB 0 0
10 Locked QAM256 18 885000000 Hz -1.8 dBmV 39.1 dB 0 0
11 Locked QAM256 19 891000000 Hz -2 dBmV 39 dB 0 0
12 Locked QAM256 20 897000000 Hz -2.2 dBmV 38.9 dB 0 0
13 Locked QAM256 21 903000000 Hz -2 dBmV 39 dB 0 0
14 Locked QAM256 22 909000000 Hz -2 dBmV 38.9 dB 0 0
15 Locked QAM256 23 915000000 Hz -2 dBmV 38.9 dB 0 0
16 Locked QAM256 24 921000000 Hz -1.8 dBmV 39 dB 0 0
 
Upstream Bonded Channels
Channel Lock Status US Channel Type Channel ID Symbol Rate Frequency Power
1 Locked ATDMA 4 5120 Ksym/sec 16900000 Hz 45.6 dBmV
2 Locked ATDMA 1 5120 Ksym/sec 36300000 Hz 45.6 dBmV
3 Locked ATDMA 2 5120 Ksym/sec 29900000 Hz 47.7 dBmV
4 Locked ATDMA 3 5120 Ksym/sec 23500000 Hz 47.7 dBmV

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