My ps3 cannot log into my Playstation network anymore?

[Stan]

My playstation network has been working fine up until a couple of days ago. My internet connection on my ps3 is perfectly fine (wireless). I was able to manage to successfully log in for 5 minutes after a few tries of trying to sign in, but got booted offline. Anyone know whats going on? Thanks
I did not make any changes to my firewall or anything that would prevent it from loging into the psn

[Norak D]

The very first step in troubleshooting connection issues is to reset the modem / router. If that doesn't work, then try redoing the PS3 network settings:

Settings > Network Settings > Internet Connection Settings > Easy or Custom

Then try again.