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Dimension ES-2008 Ethernet Switch
Troubleshooting 19-1
Chapter 19
Troubleshooting
19.1 Using LEDs to Diagnose Problems
The LEDs are useful aides for finding possible problem causes.
19.1.1 Power LED
The PWR LED on the front panel does not light up.
Table 19-1 Troubleshooting Power LED
STEPS CORRECTIVE ACTION
1 Check the connections from your switch to the power source. Make sure you are
using the supplied power cord and proper power supply. Refer to the product
specifications.
2 Make sure the power source is turned on and that the switch is receiving sufficient
power.
3 If these steps fail to correct the problem, contact your local distributor for
assistance.
19.1.2 The LK/ACT LED
The LK/ACT LED does not light up when a device is connected.
Table 19-2 Troubleshooting LK/ACT LED
STEPS CORRECTIVE ACTION
1 Verify that the attached device(s) is turned on and properly connected to the
switch.
2 Make sure the network adapters are working on the attached devices.
3 Verify that 10/100/1000 M Ethernet cable length does not exceed 100 meters. For
more information on network cables, see the section on network cable types.
19.1.3 The 100 LED
The 100 LED does not show the speed of my Ethernet device.