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What is the maximum bandwidth they allow in the mobile app gDMSS and PC based SmartPSS?? My connection is 20Mbps both ends connecting to NVR with 1080p and 3Mp cameras.. but gDMSS can only barely reach 1 Mbps and also SmartPSS can't seem to use the maximum bandwidth. Any got a clue? Thanks!

I have 3 dahua NVRs and the same result. When I enabled the IPC Offline alarm in the Alarm section, and removed an IPC, it is supposed to trigger (because it got offline), right? But it didn't trigger in the 3 NVRs. If you own any Dahua NVR. Please try it too. So if the IPC Offline Alarm doesn't detect an ipc that is removed (hence offline). What is the purpose of it? Is it possible for a camera to be connected but offline? How?

I have this 1080p pinhole camera with ultra low lux sensor.. when lights are very low.. I'm getting moving color banding artifacts (like in the following picture where you can see horizontal color line banding.. it's very dark area really). What is the exact terms for it.. is it normal?

http://www.dahuasecurity.com/products/nvr4104-w-834.html Does this dahua wireless wifi NVR still needs wifi router to connect to their corresponding wireless ipc or do they still need a wifi router? What is the case with other brands?

I have tried the wireless dahua NVR and ip cams.. they can connect directly with each other because the wifi in the nvr is an AP (access point).. but I have another brand of wireless cam.. the nvr can't find it.. it can't find its MAC.. but I thought all wifi devices transmit MAC.. what differs in them? anyone got a clue?

Hi, For normal bullet cameras like dahua or hikvision.. do they have fan inside the enclosure? If none.. won't the integrated circuits rise in temperature enough to melt the circuits or even burn the camera? Any experience in this? I have this small pinhole camera that is 1080p and the metal case is quite hot. This means the IC inside is very hot.. won't it burn? How many Celsius before the processor melt?

I'd hide the pinhole camera above the ceiling of a warehouse where the atmosphere is hot.. about 40-45 Celsius. Provided the metal case can't remove the heat enough, and the electronics temperature rise.. what approx temperature before it melts the circuit boards? Anyone experience this happen before?

I want to transfer the cameras from my dahua NVR internal poe ports to the external poe switch. My question is. Where should I connect the NVR lan.. to the switch or the router that connects it to the internet? What is the difference if I connect it to the poe switch or router? Whatever, would all the traffic in the external poe switch still pass broadcast thru the router taking up the bandwith or could the switch isolate the signals inside it just to the NVR recording?

I notice the dahua NVR/DVR has Wifi setting in the network. Are these to suppose to work by plugging a wifi usb adaptor to the USB ports of the NVR/DVR (making these able to connect with router wireless)? What particular wifi adapter is compatible? I tried EDUP but it's not working so far.

My cameras and NVR are in an unattended building. If they cut the connections.. I'd be informed by text via the IPC Offline Alarm function and gsm dialer.. but this only works using external poe switch. But using the internal poe switch.. the moments you cut the connection.. the camera entry in the search menu vanishes and no alarm is triggered.. please try and share how you can retain the camara entry by actually trying it. My vault housing my NVR has tight space left for external poe ports because the heat generated inside is only channeled out using a small fan so I need a few components as possible.

First, try unpluging the camera end, but leaving the etherent plugged in at the NVR... If that doesnt work and you want to use a switch...the dont have to expensive...this 45 dollar switch is more than adequate. http://www.amazon.com/TP-LINK-TL-SF1008P-100Mbps-8-Port-802-3af/dp/B003CFATT2/ref=sr_1_1?ie=UTF8&qid=1435368611&sr=8-1&keywords=tp+link+poe It doesn't work. Dahua must do a firmware upgrade to disable automatic poe detection and removal.. or what use would be the IPC Offline Alarm? Don't you guys use this feature? If anyone steal any of the cameras.. the NVR will dial gsm alarm module that will notify me security has be bridged.

The NVR is inside a small vault enclosure that can withstand RGP attack. So I don't open it often and the front touches the back of the vault resulting in the pressing of the on/off switch when I touch the back.

My dahua NVR shuts down automatically when an ip camera connected to one of its internal port is removed.. it doesn't happen before.. is this a setting related issue or is the NVR defective.. anyone has similar experience?

According to Dahua it is plug and play, the cams connect directly to the NVR, I am receiving mine next week and will confirm, will let you know Regards Hmm.... the NVR has built in router? Can other brand of wifi cameras connect to the wireless NVR too? Anyone?

My guess is that you still need a wifi router to connect the dahua wireless nvr and dahua wireless ip cameras.. because the wifi modules in each of them just connect to the router. is this correct?

Oh. I discovered something. IPC Offline Alarm will work if it the ip cams are located in separate external switches or routers. If the cameras are connected to the NVR internal POE ports.. it can't detect if they become offline (or the IPC Offline Alarm will not trigger). Anyone has ideas why? and what settings to adjust so it can detect its own POE ports and trigger the IPC Offline Alarm? I discovered the reason why the IPC Offline alarm doesn't get triggered when you connect your cameras to the internal poe switch. It's because the moment you removed the cameras.. the entry in the Search cameras menu disappear so it's like you didn't have any camera at all and the offline doesn't get trigger.. but putting them in external switches can retain the entry to trigger the alarm. I have now to look for expensive switches to to make it. But doesn't anyone know by chance how to make the search menu retain the entries even when you removed the camera from the unit internal poe switches?

I solved the problem. When I removed unplug the poe at the back.. I moved the unit touching the front panel to the wall that results in the power on/off key being pressed resulting in shutting down the unit.

I experienced that when using a switch.. there is no disconnection.. but when I added a router connecting to the NVR with the external poe switches connecting and camera and to the router.. there is a split seconds in which the feeds got disconnected.. anyone can explain why?

Hi, I can't locally acquire the cooling fan used in the dahua NVRs.. it's 5 volts and the board adaptor is unique.. does anyone know where I can order some? And also the bent screw driver that can detach it?

Oh. I discovered something. IPC Offline Alarm will work if it the ip cams are located in separate external switches or routers. If the cameras are connected to the NVR internal POE ports.. it can't detect if they become offline (or the IPC Offline Alarm will not trigger). Anyone has ideas why? and what settings to adjust so it can detect its own POE ports and trigger the IPC Offline Alarm?

No. We don't use ground in my country. Why.. any connection to it? When I removed an ipc.. the NVR says "Shutting down.." and it shuts down

Hi, I got this pinhole 1080p in china with built-in wifi. The video work fine but can't connect wifi. After contacting with manufacturer and trying all settings, the camera wifi circuit broken. I'd like to know how wireless wifi ip camera is supposed to work. Does it suppose to have its own SSID? my pinhole doesn't have SSID and it has to be connected to a router. Then you need special CMS to access the camera wifi. In other wireless IP camera.. can you access it directly by having its own SSID.. for example.. when you use an NVR and router.. can it see the ip wireless cam? Mine can't although the NVR can detect it using wired lan only.

I found the connections labels (see picture below).. do you know what is meant by USB_DM and USB_DP.. what kind of module it needs to send via wifi?

In the normal bullet camera without wifi. What is the lan counterpart of the wifi module where any wi fi router in the NVR can recognize it as an ip? So instead of replacing the router with a wireless bridge, what can you plug in the ip cam so its ip can be read by the NVR and router just like you do with the wifi module?

For the normal wired ip cams like Hikvision's or Dahua's. How do you make them wireless? I know the NVR needs a wifi router.. do you need to connect a second wifi router to the ip cam.. how do you make the 2 wifi routers connect to each other? or what exact equipment do you need to connect to the ip cam such that when searching in your NVR. the wireless Ip cams would appear to the menu?