cctv01

Hello guys sorry if this is a simple fix. I'm trying to setup my CCTV so I can view it when I'm outside the house. When I'm inside I can view it while on the same wifi, on the app XMEye but when I'm outside and off Wifi on date or on another network it's failing. Also I am getting this error when booting up my DVR. Any ideas? Also my network is fine so not 100% why I'm getting this error.

Hello guys, Just wondering if someone could tell me if this is possible. (I understand the ratios will be off if I display 2). Is it possible to remove the 2 cameras that are unused on this feed so that only 2 images are being shown? Cheers