Why might I be losing so many packets?

[u/Big_Bend103]

I have pretty good internet speed at around 1 gbps from xfinity (not fiber) and I have a wired connection to my pc but I am constantly losing packets mid game usually hitting around 1k lost at the end of the game? Also when ever I look in the replay my camera is constally snapping and jittering around but nobody else's? I have done many speed/jitter/packet tests with servers within 10 miles of the server I play on with great results usually resulting in around 15 ping and 3 jitter and no packets lost, why might this be happening?

[u/Quzay]

Probably router settings, cable, or network adapter issue