ZyXEL Communications P-660HW-DX, User Manual

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Chapter 21 Troubleshooting
P-660HW-Dx User’s Guide
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5 Reset the device to its factory defaults, and try to access the ZyXEL Device with the
default IP address. See
Section 2.3 on page 40 .
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 LAN / ETHERNET port.
V
I can see the Login screen, but I cannot log in to the ZyXEL Device.
1 Make sure you have entered the user name and 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
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 2.3
on page 40 .
V
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.
V
I cannot use FTP to upload / download the configuration file. / I cannot use FTP
to upload new firmware.
See the troubleshooting suggestions for I cannot see or access the Login screen in the web
configurator. Ignore the suggestions about your browser.
21.3 Internet Access
V
I cannot access the Internet.