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nah, that won't work either, as cars drive down the street at anytime during the night, which switches the IP CAM from night mode to day mode for a minute or 2.

there is no sensitivity adjustment for video tampering alarm, it's either on | off...

i wouldn't consider disabling the feature altogether a feasible solution to the very specific issue i described.

i have all Dahua setup DHI-NVR4216-16P-4KS2 running the latest firmware System Version V4.001.0000005.1, Build Date: 13-07-2021 And when IP CAM's automatically switch from night mode to day mode will often trigger a false video tampering alarm Any ideas howto solve the false alarms ?

+1 for brave, has excellent cross site cookie, and tracking cookie and add blocking rejection / protection features, so filters out all the BS

i had the same issue, and also needed to enable https to workaround the issue, however i'm still not clear why this suddenly became a requirement to view live in https only ? there was no change in my NVR, previously i was able to view live via plain old http....no changes on NVR, and same F/W...

I run 2 x 5TB CMR wd purple drives with 6 x 4k 8MP IPC at highest frame and bit rate, continouus recording and have zero issues...

so i switched over to ONVIF Version19.12(V2.8.0.949611) protocol on the IPC, and motion detection still working just fine, camera names didn't change either the only issue i've had using ONVIF, is the main stream date+time overlay position changed / bit messed up, the sub stream date+time...

yes, my DHI-NVR4216-16P-4KS2 is running DH_NVR4XXX-4KS2_MultiLang_V4.001.0000005.1.R.201126, and reporting ONVIF server version 20.06(V2.8.1.957450), ONVIF client version V2.4.1 , and is successfully detecting motion from all IPC that have motion detection enabled. IPC i have are: IPC-HFW1831E...

Having a separate pc for blue iris and PoE switch, will consume more power than a NVR with built in PoE switch. Dahua nvr you can remotely view live IPC streams using gdmss app on your phone/tablet etc, works great.

there's no mention of the obvious change there's no mention of the change in the release notes....i'm not surprised, Dahua release notes are clearly quite sloppy...

Unless you have fast motion, you will not visually notice the loss of frames, you'll only notice frame loss in fast motion scenes, and at higher frame rates etc.

whilst motion sensing appears sensitive on Dahua IPC, you'll find getting the right sensitivity balance of valid motion recordings difficult, e.g something moving from wind in the motion field of view, can very easily trip motion detection, resulting in many motion tagged files on the NVR. Also...

i've seen this issue before after NVR upgrade, i just needed to clear my browser cache and the issue is resolved....

Anybody running this new release ? And anybody know what fix's are included ??

AFAIK, can only be done via monitor console 1. goto search 2. select only the channel of interest 3. navigate to the start time on the video, click on the timeline at bottom of screen 4. click the cut 'scissor' icon. this populates the start time to save... 5. navigate to the end time on the...

Anybody upgraded to and running DH_NVR4XXX-4KS2_MultiLang_ V4.001.0000003.1.R.200813 ? Appears to have been released on 30-Sep-2020 Good / bad / otherwise ? https://files.dahua.support/Firmware/Rejestratory/NVR/NVR4xxx-4KS2/ I had a look at the release notes, a few new features, surprising...

that's what varifocal is, optical zoom, like others have said, varifocal is really for occasional lens zoom adjustments, not frequent lens adjustments. And having a varifocal IPC, you get both digital zoom plus optical zoom. But again any form of digital zoom is inferior to optical zoom. A...

yes DMSS supports digital zooming using pinch to zoom multi-touch gesture, however is far inferior to lens varifocal or PTZ with lens optical zoom, there is no comparison between digital zoom to optical zoom. Digital zoom really degrades image quality, even when IPC sensor is 4K resolution...

Also consider the well known fact hat WD have been very untrustworthy in recent times, just lookup the NAS RED SMR drive class action, WD really miss-lead the industry and lots of NAS folk had enough and started class action, which could have easily been avoided if WD exhibited more honest...

Looking at adding a couple of the HFW7842HP-Z to my CCTV NVR, but no firmware listed at https://www.dahuasecurity.com/au/products/All-Products/Network-Cameras/WizMind-Series/7-Series/8MP/IPC-HFW7842H-Z anybody know where the current firmware release for this model is available from ?

when it comes to SSD there are much better choices, i prefer not to buy WD as they are just so not trustworthy, just look at the whole NAS Red drive SMR platter drive scam, WD only come clean on the issue once facing many class action over the deceptive behavior....For SSD's I prefer to consider...

Agree, USB can be quite problematic, I'd recommend connecting to SATA3 interface on MB for better reliable connection...

the quantization error at every i-frame distorts the image, which reduces the clarity of the image, which is particularity important, especially for tying to identify finer detail in images, such as rego number plates etc...so yes it's vitally important subject, and we'll happily continue...

the I frame pulse is very difficult to see in night vision mode, as you've only got shades of grey, but it's still there. Luckily the current and latest 2.8 F/W has very little i-frame pulse with h.264, even in the brightest daylight scenes.

WD purple drives are designed specifically for 24x7 surveillance applications, so perhaps a SSD for the OS and apps' and a WD purple drive where the CCTV footage is streamed and stored...

i wonder did Dahua change the SoC, my 1813E was manufactured June 2018, here my SoC details as below = DH7200, out of the box it was running 2.62.something, i upgraded to V2.800.0000000.5.R, Build Date: 2020-01-07 very early in installation during pre-staging the camera...but even so i do recall...

IPC motion detection is disabled via camera GUI, once logged in click on setting > Event > Video Detection, then uncheck Motion Detection Enable button. I also record 24x7x365, and have enough NVR storage for my requirements, so disabling motion detection is a non issue for me...Would be good if...

Have you tried to factory reset ? The 1831E definitely does 25-30fps...mines on the latest 2.8 Dahua firmware and doing 25 fps @4k no problems....if a factory reset doesn't resolve the issue, raise the issue with your supplier...

i have the IPC-HFW1831E running F/W V2.800.0000000.5.R, Build Date: 2020-01-07, and not observed the erratic B/W behavior. And i've experimented quite a bit with VBR and CBR with small i-frame intervals to get the best possible VQ....interestingly enough, the max stated configurable CBR bitrate...