Help with wireless connection..

I'm trying to connect my PS3 to my router but when I get to the security setting I don't know which one to choose None, WEP or the other one.Which one should I pick?

Also the connection strength is only 30%.Is that good enough?

WLAN isn't a option.I have

None

WEP

W***/W*** 2 (Can;t remember what it is)

WLAN isn't a option.I have

None

WEP

W***/W*** 2 (Can;t remember what it is)

Is it a password I have to set or is it a pre set password?MJPK