ZyXEL Communications FMG3025-D10A User Manual

 Chapter 31 Troubleshooting

FMG3024-D10A / FMG3025-D10A Series User’s Guide

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

. 

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

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

check the remote management settings and firewall rules to find out why the Device does not 
respond to HTTP. 

• If your computer is connected to the WAN port, use a computer that is connected to a 

ETHERNET port.

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

Make sure you have entered the user name and password correctly. The default user name is 
admin. These fields are case-sensitive, so make sure [Caps Lock] is not on. 

You cannot log in to the web configurator while someone is using Telnet to access the Device. Log 
out of the Device in the other session, or ask the person who is logged in to log out. 

Turn the Device off and on. 

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

.

I cannot Telnet to the Device. 

See the troubleshooting suggestions for 

 Ignore the suggestions about your browser.

I cannot use FTP to upload / download the configuration file. / I cannot use FTP to upload 

new firmware.

See the troubleshooting suggestions for 

 Ignore the suggestions about your browser.