ZyXEL P-660HNU-F1 User Guide - Page 247
Troubleshooting, 26.1 Overview, 26.2 Power, Hardware Connections, and LEDs, Overview, Power
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CHAPTER 26 Troubleshooting 26.1 Overview 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 • ZyXEL Device Access and Login • Internet Access • Wireless Internet Access • USB Device Connection • UPnP 26.2 Power, Hardware Connections, and LEDs The ZyXEL Device does not turn on. None of the LEDs turn on. 1 Make sure the ZyXEL Device is turned on. 2 Make sure you are using the power adaptor or cord included with the ZyXEL Device. 3 Make sure the power adaptor or cord is connected to the ZyXEL Device and plugged in to an appropriate power source. Make sure the power source is turned on. 4 Turn the ZyXEL Device off and on. 5 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 page 255. 2 Check the hardware connections. See the Quick Start Guide. 3 Inspect your cables for damage. Contact the vendor to replace any damaged cables. ADSL Series User's Guide 247