I finally got my IOS Mobile remote working after trying different Network settings.
After downloading RXCamview - selected the + (Device Manager) - selected "IPC/NVR/DVR" (Manual wasn't an available option) then scanned the QDR code (ios Viewer app) displayed on top of the DVR server. This is where I made changes....after the scan was done, I clicked on the IP directory field it displayed a long directory path (ex. app/ios/id192.168.../etc...)
I deleted everything except the actual ip address (192.168.....). Then on the Device field I entered the "Device Name" exactly as shown on the DVR server under System/Info
ex. 1080G-XYZ...
Also on the DVR Server under Parameter/Network - I selected DHCP then rebooted the server. now my Device is Connected.
Hope this helps