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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.