Connection issues with Ethernet devices on the network.
Connection issues with Ethernet devices on the network.
You're experiencing a power-related issue when connecting additional Ethernet devices to your network. It seems the router is getting overloaded or encountering a power surge, which causes it to shut down all ports. This isn't typical for a Netgear Nighthawk model. Consider checking your power supply, cable connections, and ensuring the router has sufficient capacity for multiple devices.
It's an Ethernet device equipped with PoE, its power connections are disconnected, and STP is activating.