Hello, I have weird problem, since I have updated my PS Vita to firmware 2.00 I can't sign in to PSN anymore. I did that a week ago, I thought that PSN is down/overloaded or something for a few days, but today I turned on my PS3 and it all worked fine there.
It started just after I updated to 2.00 FW. And it is not my router issue, because I can go into Web Browser app and it loads everything fine. But it won't connect anywhere where it requires to sign into PSN account. Apps like PS Store, Trophies etc... It just won't connect!
I tried reseting and rebuilding databases ( Holding Power+PS+R button), I removed my Wi-Fi connection and added it back, none of it ever helped. It just won't connect to PSN.
I even did factory reset... No luck there.
Any ideas, anyone else have simiilar issues?
I've had similar problems but not all the time. Have you tried "internet connection test" in settings? Mine will show connection to internet but not psn. I'm not sure but mine might be related to slow internet and congestion as I am using hotel internet.
Something else I noticed was when doing connection test and it failed on psn connection the nat type failed. I know this isn't helpfull but just something I noticed. Also I didn't have any problems with my connection after the 2.0 update when I was using my home internet.
I did just updated to 2.01 Firmware and they didin't fixed the issue. What the hell Sony.
I just tried doing what you said, and it didin't helped. I configured everything manually, I thought it was DNS server problem or something, so I changed it to public google DNS settings, and still it didin't helped!
I can get into web browser and internet works fine, but everything that requires to go into PSN dosen't work, for example I can't even sync my trophies. It gives me this error all the time after few minutes of waiting: