I have a PS3 account and it won't sign in to Playstation Network. My internet is fine, but it won't sign in. If I go to settings, it says "failed". Obtaining the IP address and internet connection is successful, but it won't connect to Playstation Network. I then, on the same PS3, logged in to my other account and it won't sign in either. My sister also has a PS3 and she can sign in just fine.
What's wrong with it? Is it my PS3? If it is, what do I do?
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