User’s Guide 201
CHAPTER 24

Troubleshooting

24.1 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
NBG4115 Access and Login
Internet Access
Resetting the NBG4115 to Its Factory Defaults
Wireless Router/AP Troubleshooting

24.2 Power, Hardware Connections, and LEDs

The NBG4115 does not turn on. None of the LEDs turn on.
1Make sure you are using the power adaptor or cord included with the NBG4115.
2Make sure the power adaptor or cord is connected to the NBG4115 and plugged in
to an appropriate power source. Make sure the power source is turned on.
3Disconnect and re-connect the power adaptor or cord to the NBG4115.
4If the problem continues, contact the vendor.
One of the LEDs does not behave as expected.
1Make sure you understand the normal behavior of the LED. See Section 1.5 on
page 22.