Troubleshooting, 1 power, hardware connections, and leds, Chapter 23 troubleshooting – ZyXEL Communications P-660HN-TxA User Manual
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P-660HN-TxA User’s Guide
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Troubleshooting
This chapter offers some suggestions to solve problems you might encounter. The
potential problems are divided into the following categories.
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Power, Hardware Connections, and LEDs
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23.1 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