PS3 problem Help!!!!!

My PS3 has been working fine for the last year, I've never had a problem with it. Today when I tried to sign on it wouldn't work so a did a connection test and it couldn't obtain my IP adress. So I entered it all in manually and it worked fine, I checked my connection now and it says NAT Type- Failed. Now every time I try to sign in I get a DSN error. Does anyone know why or what I can do about this?

DSN issues smack more of an ISP problem than your client necessarily...but offhand does your PS3 connect to the internet through a router?

sounds like possible ISP problem or network issue i dont think there is a problem with your ps3

make sure if your going through a router the correct ports are open.