User`s guide

NBG5715 User’s Guide 171
CHAPTER 23
Troubleshooting
23.1 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
• NBG5715 Access and Login
• Internet Access
• Resetting the NBG5715 to Its Factory Defaults
• Wireless Router Troubleshooting
• USB Device Problems
• ZyXEL NetUSB Share Center Utility Problems
23.2 Power, Hardware Connections, and LEDs
The NBG5715 does not turn on. None of the LEDs turn on.
1 Make sure you are using the power adaptor or cord included with the NBG5715.
2 Make sure the power adaptor or cord is connected to the NBG5715 and plugged in to an appropriate
power source. Make sure the power source is turned on.
3 Disconnect and re-connect the power adaptor or cord to the NBG5715.
4 Make sure the LED button on the side panel of the NBG5715 is at the ON position. If the LED
button is turned off, the Power LED should be still on for you to determin if the NBG5715 is
receiving power.
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 23.