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User’s Guide
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CHAPTER 20
Troubleshooting
This chapter offers some suggestions to solve problems you might encounter. The
potential problems are divided into the following categories:
• Power, Hardware Connections, and LEDs
• WiMAX Modem Access and Login
• Internet Access
• Phone Calls and VoIP
• Reset the WiMAX Modem to Its Factory Defaults
20.1 Power, Hardware Connections, and LEDs
The WiMAX Modem does not turn on. None of the LEDs turn on.
1 Make sure you are using the power adapter or cord included with the WiMAX
Modem.
2 Make sure the power adapter or cord is connected to the WiMAX Modem and
plugged in to an appropriate power source. Make sure the power source is turned
on.
3 Disconnect and re-connect the power adapter or cord to the WiMAX Modem.
4 If the problem continues, contact the vendor.
One of the LEDs does not behave as expected.
1 Make sure you understand the normal behavior of the LED. See Section 1.2.1 on
page 34 for more information.