ZyXEL P-663HN-51 User Guide - Page 205
Troubleshooting, 28.1 Power, Hardware Connections, and LEDs
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CHAPTER 28 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 • ZyXEL Device Access and Login • Internet Access 28.1 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 Section 1.5 on page 25. P-663HN-51 User's Guide 205