ZyXEL Communications VMG5313-B10A/ VMG5313-B30A User Manual

 Chapter 40 Troubleshooting

VMG5313-B10A/-B30A Series User’s Guide

Reset the device to its factory defaults, and try to access the VMG 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 VMG using another service, such as Telnet. If you can access the VMG, check 

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

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

Make sure you have entered the password correctly. See the cover page for the default login names 
and associated passwords. 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 VMG. Log out 
of the VMG in the other session, or ask the person who is logged in to log out. 

Turn the VMG off and on. 

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

.

I cannot Telnet to the VMG.

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.