Make sure you have entered the current DNS setting before switching to the Open DNS if you want to go back to your old settings for any reason.
Naanị rịba ama ala ntọala DNS dị ugbu a tupu ịgbanwee mepee DNS, ma ọ bụrụ na ịchọrọ ịlaghachi na ntọala ochie maka ihe ụfọdụ.