Chapter 30 Troubleshooting

4Make sure your computer (with a wireless adapter installed) is within the transmission range of the NBG4615.

5Check that both the NBG4615 and your wireless station are using the same wireless and wireless security settings.

6Make sure traffic between the WLAN and the LAN is not blocked by the firewall on the NBG4615.

7Make sure you allow the NBG4615 to be remotely accessed through the WLAN interface. Check your remote management settings.

• See the chapter on Wireless LAN in the User’s Guide for more information.

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 Filtering chapter.

I can access the Internet, but I cannot open my network folders.

In the Network > LAN > Advanced screen, make sure Allow between LAN and WAN is checked. This is not checked by default to keep the LAN secure.

If you still cannot access a network folder, make sure your account has access rights to the folder you are trying to open.

I cannot access the Web Configurator after I switched to AP mode.

When you change from router mode to AP mode, your computer must have an IP address in the range between “192.168.1.3” and “192.168.1.254”.

Refer to Appendix D on page 259 for instructions on how to change your computer’s IP address.

What factors may cause intermittent or unstabled wireless connection? How can I solve this problem?

The following factors may cause interference:

• Obstacles: walls, ceilings, furniture, and so on.

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NBG4615 User’s Guide