Internet Consistently Interrupted Every 10 minutes.

The Facts:

1. I am using an Xfinity provided gateway

2. I pay for 2 GB service, and when working I do in fact get 2 GB's

3. I am directly connected to the modem by Ethernet.

After years of this problem plaguing me on and off, the problem seems to be getting worse. Admittedly, what is making this problem tricky, is that the interruption is a surge in ping, usually to about 1000ms, for only 2 or 3 seconds. I play a fair amount of video games, so I am hyper aware of my Ping by comparison. So when I try and get support to look at this problem, they obviously don't see anything, and when you run speedtests, unless you do it at the exact moment the interruption is happening, then they don't see it. 

Steps that have been taken thus far to figure out the problem:

1. Xfinity support has been contacted multiple times, basically all they do is "refresh the signals" which solves nothing. So they go to step 2. 
2. I have had multiple on-premise techs come out, probably 4 or 5 this year alone. They claim that they do something, but I'm beginning to think that they are not actually doing anything. 
3. I have replaced my Gateway twice this year
4. Sections of my cables have been replaced, and I have replaced my ethernet cables a few times as well. 

I have attempted a few times to use packet tracing but without any usable results. My theory is that somewhere up the line my internet signal is constantly switching between 2 different servers, and this switch is causing this brief jump in ping. 


I am at a loss, and I am hoping this reaches a Network specialist within Xfinity that can help me out. It's been almost 2 years of this problem, at varying levels, but consistently present.