Removing DNS settings from your PS3
From your PS3 home screen, go to Settings > Network Settings.
Scroll down and select Internet Connection Settings.
Select Custom for the settings method.
Now select your connection method, Wired or Wireless.
Note: If you are connecting wirelessly, you have to select your WiFi network and enter the password before you can proceed.
Leave your IP Address Setting at Automatic.
For DHCP, select the 'Do Not Set' option.
At the DNS Settings page, if you had set our DNS earlier, Manual should be selected by default. Select Automatic.
Now, scroll all the way to right without making any other changes to your connection until you are prompted to save the settings.
Select Test Connection. If the test is successful, you will see the following screen that indicates you're connected to the Internet with your default settings.
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