So I have set it up to use remote play on my Vita in my house, while both are in the same WLAN. However, the other day I tried to connect to my PS4 while I was at my sister's house, and it didn't work. First it looked for the PS4 in the local network, and then it tried to find it via the internet...and that process just kept going, it never found my PS4. Is there a special setting I need to configure to allow my PS4 to be accessed via the web? I can start downloads via the online PSN store, so it is at least possible for my PS4 to be found and activated through the web. How can I help my Vita make the connection that way?