ZyXEL Communications NBG410W3G Series User Manual

Chapter 21 Troubleshooting

NBG410W3G Series User’s Guide

V

I forgot the LAN IP address for the ZyXEL Device.

1 The default LAN IP address is 192.168.1.1.
2 Use the console port to log in to the ZyXEL Device. 
3 If you changed the IP address and have forgotten it, you might get the IP address of the 

ZyXEL Device by looking up the IP address of the default gateway for your computer. 
To do this in most Windows computers, click Start > Run, enter cmd, and then enter 
ipconfig. The IP address of the Default Gateway might be the IP address of the ZyXEL 
Device (it depends on the network), so enter this IP address in your Internet browser. 

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

.

V

I forgot the password.

1 The default password is 1234.
2 If this does not work, you have to reset the device to its factory defaults. See 

.

V

I cannot see or access the Login screen in the web configurator.

1 Make sure you are using the correct IP address.

• The default LAN IP address is 

192.168.1.1

.

• Use the ZyXEL Device’s LAN IP address when configuring from the LAN.
• Use the ZyXEL Device’s WAN IP address when configuring from the WAN.
• If you changed the LAN IP address (

), use the new IP address.

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

suggestions for 

2 Check the hardware connections, and make sure the LEDs are behaving as expected. See 

the Quick Start Guide and 

3 Make sure your Internet browser does not block pop-up windows and has JavaScripts 

and Java enabled. See 

4 Make sure your computer's Ethernet adapter is installed and functioning properly.
5 Make sure your computer is in the same subnet as the ZyXEL Device. (If you know that 

there are routers between your computer and the ZyXEL Device, skip this step.)