My PS4 is broadcasting its own wifi signal. I want to connect my vita directly to the PS4 in order to get a more stable connection (they are about 4ft apart). When I try to connect my vita to the wifi signal that the PS4 is broadcasting it asks me to enter the password. I've tried using my PSN password, router password and the add device password. Nothing it allowing me to directly connect a vita to the PS4 via WiFi. What am I doing wrong?