ZyXEL Communications Corporation P660HNT1AV2 Manuel D’Utilisation

Chapter 26 Troubleshooting

P-660HN-Tx(A) v2 User’s Guide

I forgot the IP address for the ADSL Router.

The default IP address is 192.168.1.1.

If you changed the IP address and have forgotten it, you might get the IP address of the ADSL 
Router 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 ADSL Router (it depends on the network), so 
enter this IP address in your Internet browser.

If this does not work, you have to reset the device to its factory defaults. See 

.

I forgot the password.

The default admin user name and password can be found on the cover of this User’s Guide.

If this does not work, you have to reset the device to its factory defaults. See 

.

I cannot see or access the Login screen for the web configurator.

Make sure you are using the correct IP address.

• The default IP address is 

192.168.1.1

.

• If you changed the IP address (

), use the new IP address.

• If you changed the IP address and have forgotten it, see the troubleshooting suggestions for 

Check the hardware connections, and make sure the LEDs are behaving as expected. See the Quick 
Start Guide.

Make sure your Internet browser does not block pop-up windows and has JavaScripts and Java 
enabled. See 

.

Reset the device to its factory defaults, and try to access the ADSL Router with the default IP 
address. See 

.

If the problem continues, contact the network administrator or vendor, or try one of the advanced 
suggestions.