User's Manual

Chapter 23 Troubleshooting
P-660HW-Tx v3 User’s Guide
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23.2 ZyXEL Device Access and Login
V I forgot the IP address for the ZyXEL Device.
1 The default IP address is 192.168.1.1.
2 If you changed the IP address and have forgotten it, you might get the IP address of the
ZyXEL Device by looking up the IP address of the default gateway for your computer.
To do this in most Windows computers, click Start > Run, enter cmd, and then enter
ipconfig. The IP address of the Default Gateway might be the IP address of the ZyXEL
Device (it depends on the network), so enter this IP address in your Internet browser.
3 If this does not work, you have to reset the ZyXEL Device to its factory defaults. See
Section 23.1 on page 281.
V I forgot the password.
1 The default admin password is 1234, and the default user password is user.
2 If this does not work, you have to reset the ZyXEL Device to its factory defaults. See
Section 23.1 on page 281.
V 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 23.1 on page 281), 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 and Section 23.1 on page 281.
3 Make sure your Internet browser does not block pop-up windows and has JavaScripts
and Java enabled. See Section 23.1 on page 281.
4 If you disabled Any IP (Section 23.1 on page 281), make sure your computer is in the
same subnet as the ZyXEL Device. (If you know that there are routers between your
computer and the ZyXEL Device, skip this step.)
5 Reset the ZyXEL Device to its factory defaults, and try to access the ZyXEL Device
with the default IP address. See Section 23.1 on page 281.
6 If the problem continues, contact the network administrator or vendor, or try one of the
advanced suggestions.