I facing this problem recently,normally when I switch on my PS3,it will auto connect and signed in PSN.But recently,when I open my PS3,i will show signing in and pop "An error has occured,80710092"

But,when sign in manually after that, it can sign in again.The first time when switch on the console cant connect.I need to sign in myself for the second time,then it only can sign in.

Note that,I frequently can't sign in to EA server to play Medal Of Honor,I am sure should be this problem.
Anyone can help me and give advise?