IPC-B54IR-Z12E-S2 - What causes this?

jparrie

n3wb
Oct 9, 2018
12
6
Sydney, Australia
Dahua IPC-B54IR-Z12E-S2, only a few months old recorded using a Synology NAS. Has been working fine until yesterday when all of a sudden the clock time is all over the place and the picture keeps doing as in the image. What causes that?
 

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For the image, many times that is the system having trouble processing the codec.

Are you using H265?

If so try plain H264 with general codec.

The time jumping all over - is the camera connected to the internet?
 
I am using H265, I'll try H264, although as I said, it's been working great for months. The camera is connected to the Internet via the Synology.

When you say "the system", do you mean the Synology or the camera?
 
We will see that - it will work fine for awhile with H265 and then it just wonks out.

The camera - if the camera time is constantly jumping all over then there is an issue with the NTP you are using to set the time or the camera has been hacked.
 
Agree with @wittaj looks like codec issue. H.265 as currently implemented by Dahua sucks has little benefit and routinely causes some problem.
 
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1. If you upgraded synology nas to latest version, then you lost h.265
2. This is typical compression artefact when data is corrupted. Even one byte. It repairs usually in 2 seconds (iframe time configured in encode settings on camera )

Is this from live view or recorded footage?
If live view then you have Ethernet problem - between nas and switch or switch and camera. Change cables to a new one, check camera on short new cable next to the switch.

If this problem don’t happen in live view, only in recorded storage then you have HDD problem. Corruption of data stored on disks
 
In answer to steve1225, this was both live & recorded. and I have Synology Videostation 9.2.0-11289, which is apparently the latest version.

And as a follow up to the H265 issue, it appears that that was indeed the cause as for the past 9 hours or so after changing to H264, the feed and recordings have all reverted to being as normal, so thanks to those who responded.