Hi,

I am using a Japanese NVR1016H(UN) V1.20 to receive four RTSP streams from an old Hikvision DVR. Everything was working fine until a few weeks ago, but now the streams disconnect after a few minutes, showing "No Network Video." Rebooting the Hikvision DVR restores the streams, but only for a few minutes before they disconnect again.

I believe this issue started after upgrading to firmware VIGI NVR1016H(UN)_V1.20_1.2.1 Build 241227. The problem does not seem to originate from the Hikvision DVR, as I can stream the same RTSP feeds with VLC for several hours without any issues.

I attempted to downgrade to VIGI NVR1016H(UN)_V1.20_1.1.3 Build 241024, but the NVR rejects the file. The filename inside the zip (nvr2016h16pv1_en_1_1_3_up_boot_24102475761-signed.bin) suggests it is for V1 instead of V1.20, so I am unsure if it's the correct firmware.

The logs do not provide much useful information:

1  2025-03-25 11:40:53  Main type: Exception  Sub type: IP Channel Disconnection  
   Channel No: 2  
   URL: rtsp://192.168.24.230:554/Streaming/Channels/201/  
   State: Channel Disconnect.  

2  2025-03-25 11:40:53  Main type: Information  Sub type: RTSP Progress  
   Channel No: 2  
   URL: rtsp://192.168.24.230:554/Streaming/Channels/201/ | rtsp://192.168.24.230:554/Streaming/Channels/202  
   State: Create Channel.  

3  2025-03-25 11:40:49  Main type: Exception  Sub type: IP Channel Disconnection  
   Channel No: 3  
   URL: rtsp://192.168.24.230:554/Streaming/Channels/101/  
   State: Channel Disconnect.  

4  2025-03-25 11:40:49  Main type: Exception  Sub type: IP Channel Disconnection  
   Channel No: 4  
   URL: rtsp://192.168.24.230:554/Streaming/Channels/301/  
   State: Channel Disconnect.  

5  2025-03-25 11:40:49  Main type: Exception  Sub type: IP Channel Disconnection  
   Channel No: 5  
   URL: rtsp://192.168.24.230:554/Streaming/Channels/401/  
   State: Channel Disconnect.  

6  2025-03-25 11:40:49  Main type: Information  Sub type: RTSP Progress  
   Channel No: 3  
   URL: rtsp://192.168.24.230:554/Streaming/Channels/101/ | rtsp://192.168.24.230:554/Streaming/Channels/102  
   State: Create Channel.  

7  2025-03-25 11:40:49  Main type: Information  Sub type: RTSP Progress  
   Channel No: 4  
   URL: rtsp://192.168.24.230:554/Streaming/Channels/301/ | rtsp://192.168.24.230:554/Streaming/Channels/302  
   State: Create Channel.  

8  2025-03-25 11:40:49  Main type: Information  Sub type: RTSP Progress  
   Channel No: 5  
   URL: rtsp://192.168.24.230:554/Streaming/Channels/401/ | rtsp://192.168.24.230:554/Streaming/Channels/402  
   State: Create Channel.  

Thanks for your help.