I'm currently enduring this as well. I've cycled everything, configured everything, and performed unholy rituals and dances for my router (just to be safe). I still continue to get kicked off the psn. Everything else is working fine.
I'm having this same issue and this is day 3 for me. It started out while I was online and playing Killzone3. I got the error has occurred and you have been logged out. Day 2 (yesterday) I could log in but would get the error message after playing for 10-20 minutes. Today I can't log in at all. I have reconfigured and rebooted my router three different times and nothing works. I'm glad that others are also having this issue and this suggests it's not my settings or ISP but perhaps something with Sony.
Would someone please wake up the guy in the server room and ask him to verify the servers are healthy.
I have been having the same problem. I have the 160GB PS3 slim. I get disconnected from psn network, and cant log into the EA sports servers. When I test the network connection it says it fails the speed test. However I can run Amazon Prime streaming video on the PS3 with no errors, so my internet connection speed seems to be fine. I tried reseting my DSL modem, router, and reseting the PS3 to default settings and nothing has remedied it.