Can't get internet on ps3

Okay, i'll see if i know what we're talking about here. There are a couple of things you could try. For one, try logging into your router, (usually at 192.168.0.1 and looking in the Client or Address lists for a PS3, or whatever you have named it, and then see if you can either disconnect or renew it. Then, redo the whole WiFi setup on the PS3 setting all the settings as you would but leave the IP settings as they are (should be Auto). If that still doesn't work, go into the PS3's connection settings and manually set an IP address. My suggestion is to use the same address as an already connected (and working computer), but change the last number. Whatever you do, make sure there are not two of the same IP address on the router. Hope this helps...