If your NVR is functioning properly, but when you try to add the NVR device to the OSI Go Mobile app or the Bitvision app you receive a message that he device is offline.
Please restart your NVR and then check to see if it is online.
Right mouse and then select 'Menu'
1. Select Configuration
2. Select 'Network'
3. Select 'P2P'
4. Enable P2P
5. Status should say 'Online'
You can also check this video out at the 8min 8sec mark.
Network settings menu to confirm if DHCP has been enabled.
NVR Quick start guide and user manual
• NVR Quick Start Guide
• NVR User Manual
How to view your NVR security camera's using an app or computer