OK well I got home today from school and I tried to get on my ps3 but when I tried to sign in it said DSN Error I then ran a connection check and it said Playstation Network failed! I'm so confused what this means. Can someone help me?

Are you sure it was DSN and not DNS?

Have you tried rebooting the PS3 AND your internet router?

The PSN is at his limit. So there are to many people on the PSN. There is nothing that you can do except waiting.

There was a very well reported outage on the PSN network. Hackers broke in. Look it up.

No. That's another cause of another problem. I sometimes have the same problems like him and that's not a real problem, its just the big amount of acounts that are online at the same moment

Playstation Network outage raises questions for Sony - National Gadgets | Examiner.com (http://www.examiner.com/gadgets-in-national/playstation-network-outage-raises-questions-for-sony) * April 25th, 2011 3:17 pm ET

With the Playstation Network outage now going into it's fifth day, with no estimate as to when it might be back up (according to this morning's Playstation blog post),