Appendix Troubleshooting 
 
This chapter covers potential problems and the corresponding remedies. 
 
 
  Using LEDs to Diagnose Problems 
 
 
The Light-Emitting Diodes (LED) are useful aides for finding the 
possible causes of problems. 
 
 
Problem:
 
Power
 
LED
 
Doesn’t
 Light 
Up
 
 
The Power (PWR) LED on the front panel does not light up. 
 
STEPS 
 1 
Make sure that the router’s power adaptor is connected to the router and 
plugged in to an appropriate power source. Use only the supplied power adaptor. 
 2 
Check that the router and the power source are both turned on and the router is   
 
receiving sufficient power. 
 3
Turn the router off and on.
If the error persists, you may have a hardware problem. Contact your vendor.
 
 
 
Problem:
 
LAN
 
LED
 
Doesn’t
 Light 
Up
 
 
The LAN LED on the front panel does not light up. 
 
STEPS
Check the Ethernet cable connections between your router and the computer or 
Check for faulty Ethernet cables.
Make sure your computer’s Ethernet card is working properly.
If the error persists, contact your local distributor for assistance.
 
 
 
Problem:
 
DSL
 
LED
 
Doesn’t
 Light 
Up
 
 
The DSL LED on the front panel does not light up. 
 
STEPS
1 
Check the telephone wire and connections between the router DSL port and the 
wall jack. 
  2 
Make sure that the telephone company has checked your phone line and set it up for