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Seems that with my new Firefox 55 I can not even login anymore. Putting credentials and then clicking OK, nothing happens. I think there is no 100% solution with Dahua and web browsers. IE is good in Win7, but in Win10 there is no IE. Edge does not work. For Chrome they have an app (NACL plugin) which works, but it is not a plugin, more like a "browser inside a browser" where you can put Dahua devices address in the location field. Well, better than nothing anyway. SmartPSS is also good solution but I don't know what is the logic to have so many versions (3 at the moment). SmartPSS is incredibly slow when you adjust device settings. Also you cannot go very deep in the settings, for example it does not have all the exposure settings. Also I was not able to turn on FTP snapshot upload with SmartPSS, because it does not have an option to move the tick from storage -> local snapshot -> ftp snapshot. EDIT: Seems to be that Chrome has many different apps for Dahua, depends to which camera you try to first login with it. NACL plugin is so far the best working but did not see my own NVR with it.

Just testing a system which will be installed next week. Consists of two Dahua HFW4421S and one DH-SD59220T-HN cameras. The problem is that I cannot get DH-SD59220T-HN to login in Dahuas easy4ip / p2p system. When I click in setup network -> tcp/ip -> choose tab easy4ip, UI immediately says "operate failed". Save button is grayed and if I click default, UI says "default failed". In smaller bullet cameras it works nice, and they are connected of course in the same network. Then I checked also one other 59220 which was installed last november. It has the same FW version (26.5.16) and also the same issue. Can't login to easy4ip.. Did not find (newest) firmware for the camera.

I found the problem! SmartPSS user has to have "camera" right ticked! In factory default group "user" there is no "camera" selected, and this is the reason. And this seems to have nothing to do P2P, happens also with ip/domain, just if user does not have "camera" right. Now I will make a copy of "user" group and just add "camera" and change all users to that group. Somehow there is a bug in SmartPSS so that if you add device with admin rights and then change them to user rights, it will work .... until you close the program and restart it.

Something strange with Windows 10 and Dahua SmartPSS software. In my own PC it works fine with Win7 Home, connecting almost 20 devices (NVRs/cameras), some of them P2P, some with dyndns. Installed in Win10 laptop. P2P to my own NVR works fine, but another one - P2P too - seems to be online but cannot expand NVR tree to show channels. Yesterday did the same in Win10 desktop PC. None of installed P2P NVRs would expand channel tree. Then installed one NVR device (older without P2P feature) with dyndns. Working. Then tried to connect to some of P2P ones with dyndns. Not working. In device list I can see the device is online and connected, but the amount of channels is not shown.

Yes, it has nothing to do with Windows version. Tested in fresh Win7 install. Installed SmartPSS and tried to add P2P device with normal user (viewer) rights. It won't load channels. Then deleted id, added again and put admin user first. After that I can change user/pass to one which has less rights. A bug or is it designed this way? A non-admin cannot see channels if not used first admin credentials?

I found something. If I export the whole device list of 26 devices from my Win7 PC and import it to fresh Win10 installation of SmartPSS, everything is working. Then noticed, that if I change the login credentials (admin -> user) of some devices, they still work ok, as should. However, if I clean the device list and start adding a new device, I must first use admin credentials to get the device to load channels. After that, I can change to user-privilege credentials and it seems to work! Maybe it has nothing to do with Windows version, I'll have to test SmartPSS in another Win7 PC to make sure...

Client of mine has 2 x Dahua SD59220T-HN cameras and wants to do a tour where PTZ moves every hour to different position (more like landscape webcam). I have found out that using tour does not work, there is only 255 seconds between presets. Time task also is difficult. There is 4 time tasks with 6 periods.. Should need double of that to do 24/7 60min tour for two presets... Also 255 seconds could be ok, but I'm afraid the camera will be worn out after the warranty period...

I have installed now around 16-17 Dahua systems with NVRs 4108 and 4116, couple with 5276 NVRs too. Normally I set them to record all channels 24/7 plus motion detection to record the channel where motion is detected. That way I can see continuous green timeline with yellow marks where there has been motion. This is useful when you can spot the motion and easily play all the video before and after - because motion detection does not detect everything. The problem seems to be, however, that when NVR starts recording motion over normal record, it sometimes skips frames, even 1-2 seconds may be off. Anybody found a cure for this or do I have to switch off motion record and just search "blind" over the timeline? Example video, skipping 06:12:10

I have NVR4108 running behind mobile router which does not have open ports. P2P works nice, I can do most of the things with it, but for example, I cannot view NVRs log. I have tried SmartPSS, gDMSS and www.easy4ip.com In this video it seems that couple of years ago it was possible to open NVR:s GUI directly trough P2P. Not possible anymore?

Made my own Dahua SD59220T-HN demo. Would be good for farmers too, tested how far ear tag could be read, the last one can be seen when in Full HD fullscreen mode. Johannes

Ordered 8 x those POC splitters from Alibaba. Took a while but arrived well in ~ 14 days. Well, I can say it works! I can use the old power supplies for the cameras and the voltage is dropped to 12v dc in the camera end. Just one of the old power supplies is not compatible with the splitter. Don't know why, tested with many channels but no luck. Have to get separate 24V dc power for that channel. I had problems with two cameras because there was stupid thing done in old system: there was need of 2 cables more to put under ground for 10m length, so installer was used just single CAT cable to feed 2 cameras video. Well, worked with old resolution but with HDCVI there was almost picture over picture when signals were "heard" trough CAT wires...

Installing a new Dahua HD-CVI system for a client with old analog cameras. He has power-over-coax solution so there is a big power supply inside the room and only one coax going out to each camera. I'm afraid I have to add +12V for every new HD-CVI camera now as they don't support power over coax. Or is there power-over-coax splitters available I can just plug in the camera end of coax and separate video and +12V sockets?

Well, replying to myself. The answer was simpler than tought. Updated the NVR with newest Dahua FW DH_NVR4xxx_Eng_P_V3.201.0000.0.R.20151120 Works well!

Again a tricky problem. I have client with Dahua NVR-4116H running in his office having 10/10 fiber connection. Now I installed one Dahua IP-camera at his home (30km away from office). Also with 10/10 fiber. In his fiber he has dynamic IP. If I input home IP in the office NVR when I add camera, it works ok! Having port forwarding done in his home fiber router. So I have his home camera working as one local camera. Problem is when his home fiber ip changes. I have already set up a dyndns address to access his ip camera at home, but Dahua NVR does not accept written adresses in the ip field. I'm wondering if there would be a solution to do this with some router (local or not), so that I put routers address in the camera ip field and then set up a route that if NVR ip asks port 37777 from router IP, it is redirected to home ip address? Would it be done by local Windows7 PC which is running 24/7 ?

Yes, the power supply is giving DC +29V out. Just measured today with a multimeter. Sorry I did not first pay close attention that you wrote that old PoC was 24 AC. Not a lot information I can get by looking power supply. There is one with 4 x outs and then 4 x these you can see in the picture: https://www.dropbox.com/s/ppc7pzpfa28qe9x/2016-05-04%2009.51.04.jpg?dl=0 The one with 4 outs is TS-6020PS4N, but cannot find brand name anywhere.

Well, if you read the specs of the link, you can see "- Compatible with HDCVI/ HDTVI/ AHD/ CVBS - Input voltage:DC24-36V , output power max to 12VDC,12W"

I was today on the site and checked voltages. Coax power supply is feeding around +30V for the cameras. When camera is not connected, I can measure the same in the other end of each line. And when camera is connected, I can measure +13,6V parallel on the coax. So it seems that old cameras have broad voltage range and regulator inside? Anyway, now it seems that I could use those splitters linked above. Just need to find out where from I can buy them, as that link seems to be for big trades...

Well, yes, I meant semi-local power. There is no wall socket near every camera, but I can do it with 3-4 power supplies around the site. Maybe a DIN-standard DC supply inside IP66 box. And of course no cat for hd-cvi, I was just comparing doing the whole system with IP cameras, but as present cables are physically difficult accessible, partially under ground, there is indeed no point. Still, a best solution would be a simple power splitter before the camera, but there seems to be not very much such things on the market. Found this now, the principle is just what I need and the price also ok. It's just that the feed voltage should be +24V. I should go on the site and check if the PS has adjustable voltage, then this could be the solution. http://www.alibaba.com/product-detail/Newest-HD-POC-PVT-Power-Over_60439120049.html?spm=a2700.7724857.29.37.bC0Snv

Yes, he has already power supply in the office, and I can measure +12V in the camera end of the coax. So I should only need a cheap isolator which pulls +12V from the coax and does not let it in the camera BNC plug. I'm also considering feeding a separate power +12V for every camera (8 cameras), maybe that would be the wisest solution. Anyway it is a big work, almost the same as changing the coaxs to ethernet. Anyway HD-CVI system is a lot cheaper than 8 x IP system...

This is what I mean: http://www.viewtech.co.nz/cctv-and-surveillance-systems/biwave-2100-2200-video-sender But I should just need the isolator in the camera end. (2100 sender) Would it be ok to plug the coax in the camera and then just take +12v parallel from the coax? There was no harm to HDCVI camera when I plugged the coax in even it has +12V in it.

Can't find specs what MicroSD-card Dahua HDBW4300S accepts? I need max recording time so it must be 64GB. 10MB/S recording speed should be enough. For example should Kingston SDC10G2/64GB be ok? http://itemshark.com/Product/Kingston/SDC10G264GB/Kingston-Flash-memory-card/0740617246155 Any other experience of Dahua camera as 24/7 SD-card recorder? So far I have used them only with NVR's with good results.

I have a weather station with two identical HFW4300S running on an island: http://www.krunni.com Web server in krunni.com is set to run cron job every 2 minutes to download a jpg snapshot from both cameras. http://user:password@dynamic_dns:port/cgi-bin/snapshot.cgi So far it has worked fine since june 2015, but now there is an issue with other camera. After 10-20 times of loading snapshot the server wont connect to other camera anymore. Rebooting the camera helps, and I got snapshot again 10-20 times. Sometimes the issue goes off and it works two-three times but usually always it stops totally to give snapshots. I have triple-checked both cameras settings side-by-side and they are identical. Only difference is the LAN IP, of course. On server side, I have tried to put cron job to run only 8, even 12 minutes between, but eventually that does not help. It seems to be the amount of "pulls" the camera can stand, not necessarily frequent downloads. In camera log I have looked that when issue happens, user default is logged in but never logged out. Snapshot loads before that point user default always logs also out. So it seems that user account is somehow stuck? As the station is run by solar power, we put it behind a timer during dark wintertime. It was going up twice a day and it kept battery charged enough. Now when we have sun up again and enough charge, timer is on all the time. Could it be that several power off/on cycles during winter have damaged the camera or software? Otherwise I can still login in the camera after issue, and live video can be viewed well. I am thinking about doing a factory default reset for the camera but as the station is in a remote location and the router has different LAN IP range than camera after reset, I doubt if something goes wrong and I cannot access the whole station anymore. Theretically it should be ok, as I can access the router from WAN and change the LAN side subnet, but you never know what happens... We have still maybe 1-2 weeks possible to enter the island with snowmobile but after that ice melts and it takes 1-2 months until it is possible to enter with a boat. So far I have tried: Deleted the account which is used to downloads jpgs and created it again Changed wan and lan side HTTP and TCP ports Tried different user account Turned on anonymous login for viewing One oddity is also that I cannot make these cameras to send snapshot to FTP. My HFW4300S installed at home can do it easily, but these both do not even bother to connect to the FTP server, as I have looked in the logs.. have tried at least three different FTP servers. Sorry for a long post but I tried to explain all the things are relevant to give some ideas. Johannes

Yes the reset and firmware upgrade are in my to-do list but as I can not physically access the site until about 2 months, I'm asking for ideas what could I do remotely. The risk losing connection totally after resetting camera remotely and doing firmware update is too big. In camera I have port 80 on lan side and port 8082 on wan side. I have also changed all wan side ports once to drop down all possible bots/intruders. Other camera in wan port 8081 is running fine. Johannes

The difference in our settings are that you are using P2P and I IP/domain. Haven't ever tried P2P so don't know how it should work. However, my gDMSS connects to my dynamic wan ip with dyndns name. Then port 37777 is forwarded to NVR4116 lan ip. Then I can open all my 9 cameras connected to NVR at once and also do playback. You could try to make another device with IP/domain method and see if that is working. Maybe first when connected to your WiFi so all you need is to put NVR4116 LAN ip and username/password. I have also made another video showing how to install device, sorry, subtitles are in finnish. Johannes

Yes, playback feature plays what is recorded in NVR4116 HDD. By the way, are you connecting to NVR4116 or the camera with gDMSS? You should connect to NVR4116 to see the recordings. Johannes