what type of connection are you using ?
Try this reset the router, there is a hole in front use a tooth pick and hold for about 10 sec, you will have to set the router up again so make sure you have all your internet info, the other thing on the router turn off UPnP ( plug and play ) and turn of the media server off on the PS3
i have the same problem have tried 3 days worth of changing ip default primary and secondary dns getting same results it gets the ip but no connection have tried get on netflix the net youtube cod online psn and no good results at it could it be maybe my router took a crap im using a wrt54gs2 v1 sharing my connection from laptop using vista to the router n wired ps3 it been working good till 3 days ago all my laptops connect fine please help
Yes, this is generally a workable solution for DNS problems but, for some bizarre reason, it wtarted giving me connection issues AGAIN after I changed over to the universal DNS numbers (the ones you linked to).
I have, however found some DNS numbers which are supposedly even better than those - tend to keep your computer/router from blocking most stuff - it's google's universal DNS numbers, which are 22.214.171.124 for primary, and 126.96.36.199 for secondary.
I apologize for the triple posts hopefully a mod can merge my posts, but I just remembered something. I called into Sony support and waited for a half hour on hold to talk to this chick about my conneciton problem, told me "she had seen nothing like it", so when I asked for her suproervisor, he refused to talk to me, saying my error code indicated a problem with my connection, and that was that - no further help except telling my to reset my router (no sh*t) Sony. At one point they told me that because my conneciton runs about 7 Mbps (just moved into a fairly rural area for a few months), it wouldnt work because it needs to be above 10 Mbps. Ridiculous. I've run it succesfully at speeds ranging from 1.5 Mbps up to 25 Mbps at University,
When I mentioned it might be an issue I could address my accessing my router, she didn't even know what I was talking about. It turned out, the issue was related to router settings - a firewall and then DNS settings that were messing stuff up. They never mentioned this even once. I gotta say Sony, you need some people that actually understand networking for your Playstation Network technical support (Yes, I called the Network support specifically). Unbelievable incompetent, especially since it's suposed to be their "area of expertise". I honestly could have done a better job - I could have at least told them how to access their router, although at the time I wasn't aware DNS issues were the problem. Still, a huge thumbs down (again) from me for Sony's tech support. Seemed like she just wanted me off the line and she didn't even know what she was talking about - she just knew how to look up error codes and give thoughtless, scripted responses to my questions. It was absurd, really.