Issues with Ethernet

I am using this dock with a Macbook 16. Love it and generally everything looks great. When I connect this device to my network (connects to a NestWifi Router via a Netgear switch) internet works for a bit but then the Nest looses connectivity to the internet and all devices go offline. I’ve cross-posted this to the Nest community for support but I’ve pinpointed that it is this particular device causing the issue. I’ve tried different cables and have other devices connected via ethernet but only this device is causing this issue. Any suggestions on debugging this?