ZyXEL P-663H-51 Guia Do Utilizador

P-663H-51 User’s Guide

This chapter offers some suggestions to solve problems you might encounter. The potential 
problems are divided into the following categories. 

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•

•

V

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.

V

One of the LEDs does not behave as expected.

1 Make sure you understand the normal behavior of the LED. See 

.

2 Check the hardware connections. See 

.

3 Inspect your cables for damage. Contact the vendor to replace any damaged cables.
4 Turn the ZyXEL Device off and on.
5 If the problem continues, contact the vendor.