This doesn't really help. All it says is try again later but it's been three days and it's still not working. The internet browser and internet search works, but when I try to sign in it says "An error has occured. You have been signed out of PSN. (80710B36)".
Any help would be appreciated.
I am also having the same issue as of last night. I have left it and tried it again over my lunch break with the same result. Restarted the router and modem with no change. Internet is working fine on PC and cell phone as well as web browser on PS3. Seems to be an issue with PSN?
The network is currently up, so here are a few things you can try:
Troubleshooting a wired connection
Troubleshooting a wireless connection