User guide

A-1
Appendix A: Troubleshooting
Diagnosing LED Indicators
Cannot Connect to the Internet
If you cannot access the Internet from the PC, check the following:
• If you cannot access the Internet, be sure your WIndows system is correctly
configured for TCP/IP. The IP settings should be set to “obtain an IP address
automatically.”
• The WAN Type settings for the service provider may not be configured correctly.
Use the web interface to check that the WAN settings match those provided by the
service provider.
• You may be out of the service area of the WiMAX base station. Check with the
WiMAX service provider for service coverage information.
•
If you cannot resolve the problem, check the System Status page of the web interface
and contact your WiMAX service provider.
Table A-1 Troubleshooting Chart
Symptom Action
Power LED is Off
• AC power adapter may be disconnected. Check connections between
the unit, the AC power adapter, and the wall outlet.
Power LED is Red • The unit has detected a system error. Reboot the unit to try and clear
the condition.
• If the condition does not clear, contact your local dealer for assistance.
WiMAX LED is Off
• Check with the WiMAX service provider for service coverage
information.
WiMAX Signal LEDs are Off
• Move the location of the unit.
• Check with the WiMAX service provider for service coverage
information.
LAN link LED is Off • Verify that the unit and attached device are powered on.
• Be sure the cable is plugged into both the unit 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.