I have xfinity and have 200mb/s with it.

I have an Arris SB6141 modem and a Google wifi setup with 3 pucks.

Every so often, after a bunch of zoom meetings, the latency gets really bad and when I use Speedtest.net the ping is like 700ms+ if not more. If I disconnect my router and modem and then plug them back in, things get better.

Trying to understand what is causing this bufferbloat and how to fix it. I thought it could be my modem, so I bought the Arris S33 today, not sure if that will help, but wanted some feedback on what could be causing the issue and what could help?