dexterash

@bobgroger If you used another DAHUA product before, probably you need to update the WebClient to see all 32ch. You can do this by deleting the webrec and torch folder from Program Files and rerun IE with admin rights.

You get this response time while streaming 4-5 960H channels? On Main Stream?

Nope, if you connect directly to the cameras there shouldn't be any problems. Any DAHUA IP Camera can support 4-5 8Mbps (40Mbps in total or more) of uploading. We usually setup cameras at CBR, max bitrate available. More space occupied, yet better results. How would you compare 3.6GB/hour with 1080p BlueRay Quality? Oppose to what you have seen (probably on different websites), DAHUA usually under-market their products or maybe is a bad translation.Don't know if it's a habbit, but they have a tendancy to do better products than they advertise(or invest in marketing/support). You're right!Where did you catch that term? BullsHomethIng. MD is done by cameras. NVRs only take "signals" of MD and store that in some logs. Can you state the country, out of pure curiosity? As usual, bulk sellers. Manufacturers somehow do, sellers are the problem around this. Yes it can be set. No catch there.

Ok, please do try the version I sent you. Can you ping the AP/Router while opening the live videos and see the response time? Not just one 1080p, 2x1080p videos at the same time. Yes, under ENCODE section.

Ok, some more additional stuff: -switch all port forwarding to TCP[if you are connecting remotely] -enable extra stream/substream for all channels Clarify: -NVR, DVR or Hybrid device? -are you using this version: http://www.dahuasecurity.com/download/DH_Smart-PSS_Eng_IS_V1.11.1.R.20140910.zip ? -LAN speed of 150MBps is achieved via Wireless? -is the workstation able to open 2 1080p videos and playback them fluently(equivalent to 16 cameras@960H)?

Usually, yes. If not, then there will be some cases where you'll not have image on mobile/pss/local (when the NVR/application needs the substream). And no, the NVR doesn't do any recoding/splitting. Recording the extra is a good thing if you want to view recording over slow Internet connections. Outgoing bandwidth has nothing to do with NVR's recording caps, but with what it can resend to another client As from specs and from my experience with DAHUA products is seems right. Maybe it can be possible to remote playback 4 substreams@2Mbps that summed up will be 8Mbps - in this case you really need substream recording. Yes. But you can always connect directly to the cameras. As fromwhat I can deduct, small problems at translation from chinese to english. Local view@NVR = decode. Also, the NVR has to do some indexing/information extraction(metadata) from the streams. Your seller might be wrong. If it's a big, trusted seller than go along that way. If it's eBay or some other kind of 3rd party that just wants to sell I would raise some question marks. I've attached how a decent/true NVR spec table should look like.

There should be 2 independent adjustments on the lens: angle(zoom) and focus

The total number of channels that it can preview is set by the XX in NVR41XX. But, as you also noticed, the complete resolution vs bitrate that the NVR can decode isn't stated - you'll have to get that info from your seller; in fact, DAHUA works hard on optimizing their firmwares and it might happen like this: today it can only decode 4 x 5MP channels, but a month later it will decode 8 x 5MP channells. That's also why they recommend to buy products from authorized dealers, so you can always have support and be in touch with latest updates.

Not really. Substream is also used by NVR when main is split in 4 cameras, for example. So the NVR always streams substream. Also PSS/SmartPSS will display the Substream, instead of main stream, if multiple camera split is selected - to save bandwidth. Local. Not remotely. Sync playback is not availabe remotely (yet). There is a simple trick: yes, it can local playback a 5MP recording, but downscale it to 1080p. It's a little bit complicated. NVRs have (now) 5 specs: -incoming(input) bandwidth/bitrate - the "general" that can be pulled by the NVR from the network -recording bandwidth/bitrate - on this depends the local recording, but isn't linked to local display/decode; pure storage -outgoing bandwidth/bitrate - depending on this are the remote preview&playback capabilities of the NVR -preview bitrate/resolution - for cameras locally displayed/decoded, on NVR's HDMI output -playback bitrate/resolution - for cameras locally playbacked, on NVR's HDMI output

Please responde to my questions - as I asked them with a reason, not general answers. Port forwarding is done in TCP, UDP or TCP+UDP mode? What is the Video RAM available on those workstations? Do you use some sort of firewalling/VLANing on those networks? Do you have multiple clients setup?

Not really. As I stated before, you have to sum up extra stream + main stream bitrate, not just main stream's bitrate. Should work if you setup 4Mbps for main stream and 1Mbps for extra stream. But 4Mbps for 5MP resolution is kind of low. As I stated, sum up both main and extra. Preview cams of DAHUA (UHD/4K) have a higher bitrate than 8Mbps, for example. Though, I don't recall higher than 8Mbps for current 5MP models. Preview refers to what the NVR decodes on local display. For example, a NVR could record 4 channels@1080p, but only display/decode 2 channels. Also, please be advised that these specs are only for conenction with DAHUA's own cameras. If you want other manufacturers(via ONVIF, for example), there might be some issues.

In NVR-IP Cameras setups motion detection is done by the camera, not by the NVR. Also, MD poses some problems when different brands of cameras/NVR are used (even, though, they are ONVIF conformant), so I suggest you buy the cameras&the NVR from the same manufacturer. For additional analytics (Face Detection, Tripwire etc) take a peak at: http://www.dahuasecurity.com/products_category/3-megapixels--322.html

But you can fully open/view them in IE? Or in Chrome? Do you have any port-forwarding done or is a direct connection? What Workstation are you using? How much video ram?

DAHUA will not offer direct support for items bought via eBay, Aliexpress & Co. They will respond and ask you to contact the seller: http://www.dahuasecurity.com/news/statement-on-purchasing-dahua-technology-products-103.html That said, I don't see a reason for those kind of problems. You should use latest SmartPSS: http://www.dahuasecurity.com/download/DH_Smart-PSS_Eng_IS_V1.11.1.R.20140910.zip Also, correctly setup(and enable) the Main and Extra Stream for all 3 event types: General, Motion and Alarm.

80Mbps is the total bitrate combined from main stream and extra stream(which is usually around 10-12Mbps/channel, depending on settings). So 80Mbps would give you aprox. 8 cameras - depening on the max number of channels the NVR can decode and the max resolution of the input channels. Yes, playback is limited to that bandwidth. At this point, SmartSearch cannot be done via WEB since it requires additional resources. There is no word(as from what I know) if and when they will implement it remotely.

Although they are Linux-based, the limit is in the recording application itself, not the Linux subsystem. I don't think you can change to 8 chars and nor do I see a reason for this - bruteforcing the passwords is a no-no, since the DVR will block the user after 3 failed login attempts.

How are you powering the cameras? If using multiple PSUs, remove one at a time and see if anything changes.

Explore that and use it as a second/backup option. Primary recording is done on NVR's HDD. Also, be advise: you can always conceal your NVR as you did with your router - that's the beauty of an IP system.

A NAS can be multi-protocol: NFS, FTP, CIFS/SAMBA. The true fact is that DAHUA uses a very well crafted filesystem (something like a RAW mode) to keep recordings on local HDDs. NAS forces some protocols and some limits. BTW, don't confuse NAS that access cameras and records it with NAS as a secondary drive/backup solution.

Since most proprietary SDKs can offer a lot more than a simple video stream. Btw, if anyone is interested, we have a plug-and-play(portable) beta app for DAHUA cameras, for use with a simple USB stick: plug the stick, run the app(all files required included), click on connect and there you go(not limited to number of channels or number of devices)! We added a motion detection tray balloon tip on them just for fun: click the tip and the camera goes full-screen.

Any dual-stream NVR can do that (usually, IF the cameras attached to it are dual, since the transcoding can be a problem). What do you mean/require by analytics?

What was the update procedure?

Maybe you flashed a wrong firmware or on a wrong/different product/product code?

Does it loop after a bad update/upgrade?

HD-SDI is very tricky. Better try to find HD-CVI; they don't have the same video quality as IP/SDI Megapixel, but they will work if your current cabling isn't very good - SDI will not work with poor cables/lots of interferences/ect.