If you look at the image I posted, you will see my router's info. Hopefully you have access to yours. On the page, you can see that my router is at 192.168.1.1. This means that your PS3 has to be on 192.168.1.x or 192.168.0.x or whatever range your router is at. You can see the subnet mask. You can also see the dns server that you can put in to DNS primary, ignore the secondary. Dont use pppoe username etc. This should fix your connection issues