Internet connection failed but IP address... My PS3 is telling me that it "succeeded" in

Question

My PS3 is telling me that it "succeeded" in obtaining my IP adress,but now its telling me that an error occured during communication with the server.This is a DNS error.(80710102).what is the problem?My ps3 is telling me that it obtained the ip:adress but failed to connect to the internet, dns error. i also have a router linksys wrt54g, wireless connection