Question Severe Packet Loss via Ethernet ?

Mar 18, 2022
So I have been having packet loss issues for a couple of years now, but sometimes it is worse than other times -
I play competitive Call of Duty and Fortnite mostly on my newly built gaming PC.

I lag and get packet loss so bad that I can't play recently as I will literally freeze for 3-4 seconds at a time intermittently throughout each game/match.

My setup is connected via ethernet. I have a coaxial cable outlet in my room and I have the coaxial cable going into my Netgear CM1100 modem(brand new).
I have a CAT-6 ethernet cable going from the modem into my gaming PC port.

The only thing I can think of is that there is another gateway/router in the house(which is the main gateway in the home). I have Xfinity 700mbps download and 15mbps upload with an average ping of around 10ms... Which is what we pay for so there is no issues with speeds.

If anyone can please help me here I would greatly appreciate it a lot!