EX5501-B0 / AX7501-B0 / PX7501-B0 User’s Guide
321
C
HAPTER
41
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
•
•
•
•
•
41.1 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 adapter included with the Zyxel Device.
3
Make sure the power adapter 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
2
Check the hardware connections.
3
Inspect your cables for damage. Contact the vendor to replace any damaged cables.
4
Turn the Zyxel Device off and on.