anything you don’t know google it my friend and if you’re looking for something specific be specific!!
i could tell you exactly how to set your router up if i know what router you have so-
type the model number in on google (on a sticker at the back if not the front)then after that type in “ps3 wpa settings” and do the search
-also it’s possible to better set up your router generally for ps3 so reapeat the model number and add “ps3 settings” and do another search-then click on the portforward link at the top
being specific means you don’t have to wade through everything about the router to find the info you need without getting very confused (as i used to)
oh and if you didn’t know don’t bother using the instalation disc-just open firefox or explorer or whatever and type in 192.168.2.1 into the address bar at the top-this takes you straight to the router homepage where you can change the settings
hope this helps