ZyXEL Communications VMG1312-B User Manual

 Chapter 36 Troubleshooting

VMG1312-B 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.

• Make sure you have logged out of any earlier management sessions using the same user account 

even if they were through a different interface or using a different browser.

• 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. 

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

Make sure you have entered the password correctly. The default admin password is 1234. The field 
is 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.