
Internet Connection Drops Exactly Every 4 Hours

For quite some time now, I've been experiencing a strange issue where my internet drops out for 3 seconds, every 4 hours. I realize this would sound like it's not a big deal, but every time it happens, my Zoom, Teams, etc. meeting will stall, and take 60-90 seconds to reconnect. The way I've been tracking this is with the "Internet Connection Monitor" extension in Google Chrome.
In this case, the machine that is detecting these outages is a desktop machine connected via Ethernet to switch that is connected to the gateway Eero. Also, the WiFi is disabled on the desktop, so there's only the ethernet connection. Given that, there isn't a reason why it should be losing connectivity.
Eero Model: 3 x Eero Pros (Model B010011) - All Ethernet Connected
Eero Version: 6.6.1-2
Desktop: iMac running MacOS 12.2
ISP: AT&T
ISP Modem: Pace 5268AC
ISP Modem Hardware Version: 260-2173300
ISP Modem Software Version: 11.14.1.533851-att
Hopefully someone has seen this and has a suggestion of where I can/should look. Thanks!