ZyXEL Communications 4728F User Manual

 Chapter 55 Troubleshooting

XGS-4526/4528F/4728F User’s Guide

I forgot the username and/or password.

The default username is admin and the default password is 1234.

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

.

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

Make sure you are using the correct IP address.

• The default in-band 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 

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

Make sure your computer is in the same subnet as the Switch. (If you know that 
there are routers between your computer and the Switch, skip this step.)

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

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

• Try to access the Switch using another service, such as Telnet. If you can access 

the Switch, check the remote management settings to find out why the Switch 

does not respond to HTTP.

I can see the Login screen, but I cannot log in to the Switch.