ZyXEL Communications NBG6503 Manuel D’Utilisation

 Chapter 23 Troubleshooting

NBG6503 User’s Guide

• Check the settings for QoS. If it is disabled, you might consider activating it. If it is enabled, you 

might consider raising or lowering the priority for some applications.

I set up URL keyword blocking, but I can still access a website that should be blocked.

Make sure that you select the Enable URL Keyword Blocking check box in the Content Filtering 
screen. Make sure that the keywords that you type are listed in the Keyword List. 

If a keyword that is listed in the Keyword List is not blocked when it is found in a URL, customize 
the keyword blocking using commands. See the Customizing Keyword Blocking URL Checking 
section in the Content Filter chapter.

If you reset the Router, you lose all of the changes you have made. The Router re-loads its default 
settings, and the password resets to 1234. You have to make all of your changes again.

You will lose all of your changes when you push the RESET button.

To reset the Router,

Make sure the power LED is on.

Press the RESET button for longer than 1 second to restart/reboot the Router.

Press the RESET button for longer than five seconds to set the Router back to its factory-default 
configurations.

If the Router restarts automatically, wait for the Router to finish restarting, and log in to the Web 
Configurator. The password is “1234”.

If the Router does not restart automatically, disconnect and reconnect the Router’s power. Then, 
follow the directions above again.

I cannot access the Router or ping any computer from the WLAN (wireless AP or router).

Make sure the wireless LAN is enabled on the Router