the power light is not lit
the switch has no power.

· make sure the power cord is properly connected to the switch.
· make sure the power adapter is properly connected to a functioning power outlet. if it's in a power strip, make sure the power strip is turned on. if the socket is controlled by a light switch, make sure the switch is in the on position.
· make sure you are using the netgear power adapter supplied with your switch.
the port number light is not lit for a connected device or stays on continuously
there's a hardware connection problem.

· make sure the cable connectors are securely plugged in at the switch and the device.
· make sure the connected device is turned on.
· if the ethernet cable is connected to a nic or other ethernet adapter, make sure the card or adapter is installed correctly and is working.
· make sure the cable is less than 328 feet (100 meters).