Allied Telesis AT-GS950/16 Installation Guide download pdf (Page 43)

Chapter 3

Troubleshooting

This chapter contains information on how to troubleshoot the switch if a

problem occurs.

Note

For further assistance, please contact Allied Telesis Technical

Support at www.alliedtelesis.com/support.

Problem 1: The POWER LED on the front of the switch is off.

Solutions: The unit is not receiving power. Try the following:

 Verify that the power cord is securely connected to the power

source and to the AC connector on the back panel of the switch.

 Verify that the power outlet has power by connecting another

device

to it.

 Try connecting the unit to another power source.

 Try a different power cord.

 Verify that the voltage from the power source is within the required

levels for your region.

Problem 2: All of the port LEDs are off even though the ports are

connected to active network devices.

Solution: The switch is probably operating in low power mode. To toggle

on the LEDs, press the eco-friendly button on the front panel.

Problem 3: A twisted pair port on the switch is connected to a network

device but the port’s LINK/ACT LED is off.

Solutions: The port is unable to establish a link to a network device. Try

the following:

 Verify that the network device connected to the twisted pair port is

powered on and is operating properly.

 Verify that the twisted pair cable is securely connected to the port

on the media converter channel and to the port on the remote

network device.

 Verify that the port is connected to the correct twisted pair cable.

This is to eliminate the possibility that the port is connected to the

wrong network device, such as a powered off device.

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Allied Telesis AT-GS950/16 Installation Guide Page 43