Troubleshooting
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Diagnosing LED Indicators
Troubleshooting Chart
Symptom Action
POWER LED is Off • The AC power adapter may be disconnected. Check connections
between the wireless AP/Router, the power adapter, and the wall
outlet.
WLAN LED is Off • The wireless AP/Router’s radio has been disabled through it’s web
management interface. Access the management interface using a web
browser to enable the radio.
LAN/WAN LED is Off
(when port connected)
• Verify that the wireless AP/Router and attached device are powered
on.
• Be sure the cable is plugged into both the wireless AP/Router and
corresponding device.
• Verify that the proper cable type is used and its length does not exceed
specified limits.
• Check the cable connections for possible defects. Replace the
defective cable if necessary.
3G USB LED is Off • Be sure that your mobile 3G adapter is connected to the USB port.
3G USB LED is continuously
flashing
• You may have entered an incorrect PIN code for the device, or your 3G
adapter might be locked.
• Be sure to unlock the 3G adapter.
• Verify that the correct PIN code is entered for the 3G adapter’s network
service provider.
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