ZyXEL Communications P-660N-T1A, User Manual

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Chapter 23 Troubleshooting
P-660N-T1A User’s Guide
229
• If you changed the IP address ( Section 7.2 on page 87 ), use the new IP
address.
• If you changed the IP address and have forgotten it, see the troubleshooting
suggestions for I forgot the IP address for the ZyXEL Device.
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 C on page 279 .
4
Make sure your computer is in the same subnet as the ZyXEL Device. (If there are
routers between your computer and the ZyXEL Device, skip this step.)
• If there is a DHCP server on your network, make sure your computer is using
a dynamic IP address. See Appendix A on page 241 . Your ZyXEL Device is a
DHCP server by default.
• If there is no DHCP server on your network, make sure your computer’s IP
address is in the same subnet as the ZyXEL Device. See Appendix A on page
241 .
5
Reset the device to its factory defaults, and try to access the ZyXEL Device with
the default IP address. See
Section 1.6 on page 26 .
6
If the problem continues, contact the network administrator or vendor, or try one
of the advanced suggestions.
Advanced Suggestions
• Try to access the ZyXEL Device using another service, such as Telnet. If you can
access the ZyXEL Device, check the remote management settings and firewall
rules to find out why the ZyXEL Device does not respond to HTTP.
• If your computer is connected to the WAN port or is connected wirelessly, use a
computer that is connected to a ETHERNET port.
I can see the Login screen, but I cannot log in to the ZyXEL Device.
1
Make sure you have entered the password correctly. The default admin password
is
1234 . The 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 ZyXEL Device. Log out of the ZyXEL Device in the other session, or ask the
person who is logged in to log out.
3
Turn the ZyXEL Device off and on.