Well in order for me to help you i need the following:

Make/model of you router
how you connect to the PS3
What hardware/material are you currently using to connect to the internet


Please provide these three things and i will gladly be able to help you.

Also, question, you say that you want to connect so its NOT wirelss? so does that mean you are playing online with your PS3 via wireless? if so please specify.

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What is a physical body. The body is merely an object. It is a form of existence far too impure to store the gods within us called souls. Now you will remember. The bloodstained history. Material desire. Hunger. Sexual Drive. Desire to dominate. Desire for fame. Humanity. As long as there is a body, desires will be born. The human ego will never disappear as long as desire remains present. Humans will continue to fight to fulfill their bodies desires and it will never end. At this rate there is no future.