Ps3 wireless online problem?

hi i was just on ps3 scanning for an access point i found 1 one access point the said linksys and it said no wep or no security so i clicked it and i ran test and keeps saying dns error 807101102 somthing like that and i was wondering how i can get it working because i really want to play online with my buds, much aprecciated Dom. P.s. i already tryed going to custom and puting in 4442 and 4441 in the ip address and it did not work.