Turn off the proxy server and check all the other connection settings!
Chat with our AI personalities
First... I'm not sure how old this post is, but this happened to me today. (03/06/14) I got the error code 80028EA1. I was playing Dragon's Dogma. I saved the game, Turned off my PS3, Unpluged it for about 15 min. I pluged it back in. I turned it back on. I signed in no problem. Everything is back to normal. Good luck, I hope this helps.
I am not connect to the ps3
This error occurs when the PS3 is down for maintenance. On March 9, 2011, the Network will be down most of the day for routine maintenance.
The network is down and the related question has currentstatus
The network is down see related question for more information