I have a Cisco DPC825 modem that works fine for WiFi but I cannot get connected to the Internet, or local network, with the ethernet ports. I have tried multiple ports on the back of the modem with multiple devices but still no joy. As I am writing this I have two devices plugged in, and turned on, to ethernet ports on the modem but the device status shows:
My LAN setup is:
How can I get the ethernet ports working?