Ok, so I just bought a Vita last week, I no longer use my router since I connect my PS3 direct connection. So I go to A & W to sync my trophies, and I get an error, so I decided to do an internet connection test, it says successfully obtained IP address and successfully connected to the internet, but it fails at connecting to the network (I checked under setting then, and tried signing in, but same thing happens.). I cannot figure out why, anyone have any ideas?
Try a different place. The A & W may use a web proxy server or firewall that restricts the protocols that devices can use. You need to have several obscure IP ports open in order to use PSN. Not all public networks allow the use of those ports.