ZyXEL Communications NBG-417N, User Manual, Page: 202 / 279

Chapter 24 Troubleshooting
User
’
s Guide
203
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
Section 24.5 on page 206 .
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 7.3 on page 102 ), 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 NBG4115.
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 B on page 215 .
4
Make sure your computer is in the same subnet as the NBG4115. (If you know
that there are routers between your computer and the NBG4115, skip this step.)
• If there is a DHCP server on your network, make sure your computer is using
a dynamic IP address. See Section 7.3 on page 102 .
• If there is no DHCP server on your network, make sure your computer ’ s IP
address is in the same subnet as the NBG4115. See Section 7.3 on page 102 .
5
Reset the device to its factory defaults, and try to access the NBG4115 with the
default IP address. See
Section 7.3 on page 102 .
6
If the problem continues, contact the network administrator or vendor, or try one
of the advanced suggestions.
Advanced Suggestions
• Try to access the NBG4115 using another service, such as Telnet. If you can
access the NBG4115, check the remote management settings and firewall rules
to find out why the NBG4115 does not respond to HTTP.
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