PS4 remote play just stopped working and no longer can use vita outside my network.......

Hello, 

   I bought this nighthawk a few months ago and i was able to remote play no problem, no port forwarding, nothing, automatically found my ps4 when i would remote play on my vita on a different wifi. Now out of the blue it decides to stop working and my vita can not find my ps4 over wifi. I have logged out and logged in to everything, re booted the router and still can't get this to work over wifi and very irritated how one day it just stops working. Now if im home the remote play works great because its in the same network. Any help would be great.