Annke/Hikvision pausing/black flashes

[NickW]

Hi all. I've recently had a warranty replacement of my Annke C800 camera and now have a small issue with the video feed pausing/flashing black every few seconds. I'm pretty sure the old camera wasn't doing it.

See sample here

The effect is also present at night, and much worse if I enable WDR, and sometimes activates the motion recording because of the glitch.

I get the same issue whether viewing the live feed from IE/Chrome/iVMS, or viewing the recording, which is done to the internal micro SD card. So I don't believe it to be a bandwidth OR storage issue.

My relevant settings are below:-
Camera
Annke C800 (I91BM) (Hikvision clone)
Firmware: V5.5.102 build 210611
Integration Protocol
ONVIF: OFF
Video/Audio
Resolution: 3840x2160
Bitrate: Constant
Video quality: highest
Frame rate: 12
Max bitrate: 8192
Video encoding: H.265+
I-frame: 12
SVC: OFF
Image Adjustment
Brightness, Contrast, Saturation, Sharpness all 50
Exposure Settings
Iris: Manual; Exposure: 1/100
Day/Night Switch
Day/Night Switch: Auto; Sensitivity: 5
Filtering Time: 5
Smart Supplement Light: OFF
Supplement Light Mode: IRlight Supplement Light
Light Brightness Control: Auto
IR Light: 100
Backlight Settings
BLCArea, WDC, HLC: OFF
Image enhancement
DNR: OFF
Video Adjustment
Mirror: OFF
Video standard: PAL 50Hz
Motion Detection
Enable Motion Detection & Enable Dynamic Analysis: ON

I've tried different bitrates, even the lowest, and resetting to factory defaults. Tried different i-frame values. Any changes either make it worse or no difference.

Any ideas? As the camera is new I'm trying to find out if it might be a hardware issue and needs replacing.

 

[alastairstevenson]

Any changes either make it worse or no difference.

Which changes make it worse? That may be a clue.
Have you tried not using h.265+ ?

I get the same issue whether viewing the live feed from IE/Chrome/iVMS, or viewing the recording, which is done to the internal micro SD card. So I don't believe it to be a bandwidth OR storage issue.

If you disable recording, do you still see the effect on Live View?
How is the device powered?

 

[NickW]

WDR definitely made it worse.
Yes tried without H.265+, and even H.264. Same effect.
Same problem live streaming without recording, as this is what I get straight after a full factory reset.

It's powered by a 12v injector over the cat5e. Good idea - I'll try powering directly from a different 12v supply and report back. Ladders out...

 

[NickW]

It's still pausing every 5 seconds approximately when directly plugged into a 12v 3a power supply.

 

[alastairstevenson]

It does sound like you've covered all the bases that could be a contributing factor to the problem.

That does leave the firmware as a possibility.
But the chances of Annke helping out with that are pretty small, in my experience.

 

[NickW]

It does sound like you've covered all the bases that could be a contributing factor to the problem.

That does leave the firmware as a possibility.
But the chances of Annke helping out with that are pretty small, in my experience.

Well actually this is a warranty replacement, and for the old one they remote connected to my PC to troubleshoot it. Upgraded the firmware, and confirmed a hardware fault (kept resetting to defaults after any power cycle). Sent a new camera. All within about a week.

My question then is if anyone thinks my sample footage is normal/acceptable? Otherwise I'll contact them again.

Cheers Alastair.

 

[alastairstevenson]

But the chances of Annke helping out with that are pretty small, in my experience.

It does sound like you've had some good support so far.
Let's hope that continues, you've certainly had a good crack at the fault-finding.

I recently registered on their support system to request a copy of the same firmware as had been installed on a camera where it had become corrupt.
This should be a pretty straightforward request.

After a couple of weeks with only a basic acknowledgement and no further response I added a chasing post.
My account was then suspended.