Why You Cannot Access Certain Websites

Why you can’t access certain web sites from computers on the network.

Chances are good that your software firewall is the culprit, rather than your router. Software firewalls might block your access to certain web sites for a variety of reasons. If your computer runs a software firewall, start your troubleshooting by first disabling the software firewall and then visiting the web site again.

If you still can’t access the site, enter your router’s firmware menu and then navigate to its filtering settings. Anyone who can log into your router’s firmware using the default username and password, if you didn’t change it, to use the router’s filtering features to create a list of Web sites that the router will block access to.

But, this is a much less likely scenario than your software firewall detecting something on the web site that triggers its own blocking features.