I am having trouble with my new LS1005G switch.

The Ethernet connection is coming to the switch from the router via a TP- Link powerline av600. It is connecting a Roku Ultra, Sonos speaker and Totu USB-c docking station for a MacBook Pro laptop.

I am able to get all devices connected to the internet. But after some time (matter of an hour or so) the Internet connections drop. I’d  like all devices to connect to the Internet. The issue is the devices lose all Internet connectivity. Since I understand the switch is full duplex, I thought the different devices on the Ethernet ports are independent. The lights on all the active ports appear to be showing activity. Any ideas about what might be going on?

Thanks!