Proprietary & Confidential
Page
75 of 80
Revision: V1.0
Jan. 19 2008
Appendix - Troubleshooting
This chapter covers potential problems and the corresponding remedies.
A.1 Using LEDs to Diagnose Problems
The Light-Emitting Diodes (LED) are useful aides for finding the possible causes of
problems.
A.1.1 Problem: POWER LED Doesn’t Light Up
The Power (PWR) LED on the front panel does not light up.
STEPS CORRECTIVE
ACTION
1
Make sure that the DSL-2140/2140W’s power adaptor is connected to the
DSL-2140/2140W and plugged in to an appropriate power source. Use only the
supplied power adaptor.
2
Check that the DSL-2140/2140W and the power source are both turned on and the
DSL-2140/2140W is receiving sufficient power.
3
Turn the DSL-2140/2140W off and on.
4
If the error persists, you may have a hardware problem. Contact your vendor.
A.1.2 Problem: ETHERNET LED Doesn’t Light Up
The ETHERENT LED on the front panel does not light up.
STEPS CORRECTIVE
ACTION
1
Check the Ethernet cable connections between your DSL-2140/2140W and the
computer or hub.
2
Check for faulty Ethernet cables.
3
Make sure your computer’s Ethernet card is working properly.
4
If the error persists, contact your local distributor for assistance.
A.1.3 Problem: DSL LED Doesn’t Light Up
The DSL LED on the front panel does not light up.