ZyXEL Communications NBG-417N User Manual

 Chapter 24 Troubleshooting

NBG-417N User’s Guide

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

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

Make sure your computer is in the same subnet as the NBG-417N. (If you know that there are 
routers between your computer and the NBG-417N, skip this step.)

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

address. See 

. 

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

same subnet as the NBG-417N. See 

Reset the device to its factory defaults, and try to access the NBG-417N with the default IP address. 
See 

.

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

• 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-417N.

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. 

This can happen when you fail to log out properly from your last session. Try logging in again after 
5 minutes.

Disconnect and re-connect the power adaptor or cord to the NBG-417N. 

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

.

I cannot access the Internet.

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