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ZyXEL Communications NBG-419N User Manual

Page 217

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Chapter 31 Troubleshooting

NBG-419N User’s Guide

217

2

If this does not work, you have to reset the device to its factory defaults. See

Section 31.4 on page 219

.

I cannot see or access the Login screen in the Web Configurator.

1

Make sure you are using the correct IP address.

• The default IP address is

192.168.1.1

.

• If you changed the IP address (

Section 13.4 on page 135

), use the new IP

address.

• If you changed the IP address and have forgotten it, see the troubleshooting

suggestions for

I don’t know the IP address of my NBG-419N.

2

Check the hardware connections, and make sure the LEDs are behaving as
expected. See the Quick Start Guide.

3

Make sure your Internet browser does not block pop-up windows and has
JavaScripts and Java enabled. See

Appendix A on page 229

.

4

Make sure your computer is in the same subnet as the NBG-419N. (If you know
that there are routers between your computer and the NBG-419N, skip this step.)

• If there is a DHCP server on your network, make sure your computer is using

a dynamic IP address. See

Section 14.3 on page 137

.

• If there is no DHCP server on your network, make sure your computer’s IP

address is in the same subnet as the NBG-419N. See

Appendix B on page

237

.

5

Reset the device to its factory defaults, and try to access the NBG-419N with the
default IP address. See

Section 28.3 on page 206

.

6

If the problem continues, contact the network administrator or vendor, or try one
of the advanced suggestions.

Advanced Suggestion

• If your computer is connected to the WAN port or is connected wirelessly, use a

computer that is connected to a LAN/ETHERNET port.

I can see the Login screen, but I cannot log in to the NBG-419N.

1

Make sure you have entered the password correctly. The default password is
1234. This field is case-sensitive, so make sure [Caps Lock] is not on.