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oppositedns.org’s server IP address could not be found.

Try:

Checking the connection
Checking the proxy, firewall, and DNS configuration

ERR_NAME_NOT_RESOLVED

Check your Internet connection

Check any cables and reboot any routers, modems, or other network devices you may be using.

Check your DNS settings

Contact your network administrator if you're not sure what this means.

Try disabling network prediction

Go to the Chrome menu > Settings > Show advanced settings… and deselect "Use a prediction service to load pages more quickly." If this does not resolve the issue, we recommend selecting this option again for improved performance.

Allow Chrome to access the network in your firewall or antivirus settings.

If it is already listed as a program allowed to access the network, try removing it from the list and adding it again.

If you use a proxy server…

Go to Applications > System Settings > Network, select the active network, click the Details… button, and deselect any proxies that may have been selected.

oppositedns.org’s server IP address could not be found.

oppositedns.org’s DNS address could not be found. Diagnosing the problem.