ZyXEL Communications P-660HN-TxA, User Manual

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Chapter 23 Troubleshooting
P-660HN-TxA User’s Guide
235
• If you changed the IP address ( Section 7.2 on page 91 ), 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 281 .
4
Reset the device to its factory defaults, and try to access the ZyXEL Device with
the default IP address. See
Section 1.7 on page 26 .
5
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.
4
If this does not work, you have to reset the device to its factory defaults. See
Section 23.1 on page 233 .
I cannot Telnet to the ZyXEL Device.
See the troubleshooting suggestions for I cannot see or access the Login screen in
the web configurator. Ignore the suggestions about your browser.