network error 80......

we all know that error but what does it mean? I tried to connect today to the internet (being able to in the past) but today i keep getting that..cant obtain ip address or nothing..
Can someone tell me whats wrong.. i havnt done anything from yesterday so....

I think it might be a router error. Sometimes the firewalls decide to block your ps3 from the network. Configure your router setting set a static ip for your ps3 and set the ps3's ip up on a DMZ. You shouldn't have any problems with disconnecting then.