DVR automatically shuts down

[JHooK]

My DVR is automatically shuting down or it`s stop running, what can be the problem?
I`ve noticed that usually this happen with NVRs connected via UPS and not directly

 

[fenderman]

Are you referring to your pc running blue iris (that you mentioned on your other post) or is this a standalone unit? What is the make and model?

 

[JHooK]

is a standalone unit Dahua 2104H 1U series

 

[DaveP]

How many cameras are connected ?
What stream resolutions are being recorded ?

Full details are really required, everything apart from shoe size and mothers maiden name would be of great help in identifying the problem.

But I'll hazard a guess that as its got quite a low spec, the processor is working to hard and getting a 'tad warm' (understatement), this could result in a shut down.

 

[fenderman]

unplug the ups from the wall and see if it continues to power the DVR...

 

[JHooK]

2 cams are connected, with parameters:
from IP cam to DVR: compression: H.264; resolution: CIF; framerate: 12fps; bit rate type: VBR; quality: high; bitrate: 160kbps
from DVR through Network: compression: H.264; resolution: QCIF; framerate: 4fps; bit rate type: VBR; low; bitrate: 40kbps

Only direct manual reboot help them to restart after this it can work fine for some time

From log file I have:
16:12 (4 feb) Shutdown - 8:47 (5 feb) Boot up Reboot Symbol: 0x01
14:13 Shutdown - 17:52 Boot up Reboot Symbol: 0x01

or this types of errors:
6:11 Net Disconnection Ethernet port 1 Begin – 6:11 Net Disconnection Ethernet port 1 End
10:19 Net Abort Ethernet port 1 begin - 10:20 Net Abort Ethernet port 1 end