HELP !!! need HELP !!! here !!

i try to connect my ps3 to o9 ~ there the problem comes ~ i use my ADSL modem with wire ~ i plug it in n do all the setting with auto/manual ~ but at last my modem DSL light is not on ~ no matter how i try on setting but still the same result coming out ~ there showing me a msg :

An error occurred during communication with the server. This is a DNS error (80710102)

wats tis mean ?? i try on the modem on my pc ~ no problem on it ~ i through is my phone line problem i try on also but no problem on it js donno y the DSL light is not function !! any1 can help me abt tis ~ i so worry tht my ps3 internet system got problem if really i js need to go back to the shop there i don 1 tis to be happen

anything can reply here or mail me ~~ (mammymy@yahoo.com)