DNS Error

When i try to connect my ps3 to the internet it says DNS error (80710102),im with a wired connection.I googled it and i tried some things but still cant connect it.
Anyone can help ?

http://foggaming.com/modules.php?name=PS3&file=ps3_ip
http://boardsus.playstation.com/t5/Play ... p/42264211

thank you,i tried this one last night and i didnt worked out but i'll try it again and i hope it will be work now.