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Chapter 23 Troubleshooting
NBG334S User’s Guide
205
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 217.
4 Make sure your computer is in the same subnet as the NBG334S. (If you know that there
are routers between your computer and the NBG334S, 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 computers IP address is
in the same subnet as the NBG334S. See Section 7.3 on page 102.
5 Reset the device to its factory defaults, and try to access the NBG334S 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 NBG334S using another service, such as Telnet. If you can access the
NBG334S, check the remote management settings and firewall rules to find out why the
NBG334S does not respond to HTTP.
If your computer is connected to the WA N port or is connected wirelessly, use a computer
that is connected to a LAN/ETHERNET port.
V I can see the Login screen, but I cannot log in to the NBG334S.
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.
2 You cannot log in to the web configurator while someone is using Telnet to access the
NBG334S. Log out of the NBG334S in the other session, or ask the person who is
logged in to log out.
3 Disconnect and re-connect the power adaptor or cord to the NBG334S.
4 If this does not work, you have to reset the device to its factory defaults. See Section
23.4 on page 207.
V I cannot Telnet to the NBG334S.
See the troubleshooting suggestions for I cannot see or access the Login screen in the web
configurator. Ignore the suggestions about your browser.
V I cannot use FTP to upload / download the configuration file. / I cannot use
FTP to upload new firmware.
205


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