Got a 16ch dvr there is no make on it at the back it has a Ethernet port which I have plugged into the router I also have a iPhone five in the dvr settings it gives the IP address and other info I have only found one app what allows me to watch on my phone but freezes my phone have to delete and put on again it was called 'supercam' I have tried about 30 other apps but comes up not connected I have also put in the same info as the one that works but freezes can anyone help thanks