Chapter 20 Troubleshooting
User’s Guide 233
1Check the hardware connections, and make sure the LEDs are behaving as
expected. See the Quick Start Guide and Section 1.2.1 on page 34.
2Disconnect and re-connect the power adapter to the WiMAX Modem.
3If the problem continues, contact your ISP.
The Internet connection is slow or intermittent.
1The quality of the WiMAX Modem’s wireless connection to the base station may be
poor. Poor signal reception may be improved by moving the WiMAX Modem away
from thick walls and other obstructions, or to a higher floor in your building.
2There may be radio interference caused by nearby electrical devices such as
microwave ovens and radio transmitters. Move the WiMAX Modem away or switch
the other devices off. Weather conditions may also affect signal quality.
3There might be a lot of traffic on the network. Look at the LEDs, and check Section
1.2.1 on page 34. If the WiMAX Modem is sending or receiving a lot of
information, try closing some programs that use the Internet, especially peer-to-
peer applications.
4Disconnect and re-connect the power adapter to the WiMAX Modem.
5If the problem continues, contact the network administrator or vendor, or try one
of the advanced suggestions.
The Internet connection disconnects.
1Check your WiMAX link and signal strength using the WiMAX Link and Strength
Indicator LEDs on the device.
2Contact your ISP if the problem persists.
20.4 Phone Calls and VoIP