DS-7216HUHI-K2 slow playback on IP cameras

[Mike94]

I'm a CCTV installer and I have installed recently DS-7216HUHI-K2 HVR, which currently works with around 10 analog and 5 IP cameras. The live view works pretty fine, regardless of the type of camera or video configuration(resolution, bitrate, fps, etc). The problem starts when we want to access the remote playback for the IP cameras. (Local playback works always very good, for all type of cameras). I have tried literally everything which could come to my mind, changing the resolution, frame rate, fps, toggling between VBS and CBS, switching between H264, H264+, H265, disabling the streaming encryption, etc, but doesn't matter how I amend the video settings, the HIK-Connect will never let me to have a smooth playback on the IP cameras. The playback is very laggy, the time is not progressing, and it only affects the IP cameras, which is really weird.

I have done the speedtest, whilst connected to the same switch where the IP cameras are, and I am getting around 30 download and 20 upload, which maybe is not the best, but it should be still enough. The IP cameras which are used are(The firmware hase been updated on all of them recentlty) :

3x Hikvision-5MP-DS-2CD2752F-IS
2x H.VIEW HV-500E6
*The DVR is equipped with a WD Purple hard drive

I think I should mention something about the network topology of this system. The DVR connects directly to the BT router and there is a 16 Port Gigabit Netgear PoE swtich which also connects directly to the BT router, and all IP cameras connect to this switch.

The interesting fact is that I installed another CCTV system which is using an NVR instead but also the same H.VIEW cameras and it works amazingly well, in fact I didn't really need to change any video settings to achieve a smooth remote playback...

Thank you for your help in advance

Cheers,

Mike

 

[alastairstevenson]

The DVR connects directly to the BT router and there is a 16 Port Gigabit Netgear PoE swtich which also connects directly to the BT router,

Some routers do not cope well with handling high-volume camera traffic across their ethernet ports - it can seriously degrade their prime task (routing) such that internet performance suffers.
It's good practice to keep the local camera traffic off the router and let the switch handle it.

Suggestion :
Connect the DVR to the switch instead of the router and see if that fixes the problem.

 

[Flintstone61]

Yeah i agree with Alastair,,,, I would try putting the HVR into a switch port. The router will find it. That how my system is. I'm feeding 3 different dvr/Nvrs to the switch, the router is hooked to the switch and still sees them in the status menu.

 

[Mike94]

Suggestion :
Connect the DVR to the switch instead of the router and see if that fixes the problem.

Hi Alastair & Flintstone, thank you for your replies

I completely forgot to mention, but I have tried already to connect the DVR directly to my Netgear switch and the remote playback was still suffering the same lag. I have also managed to do another test, when I disconneted all analog cameras and only left the IP cameras connected to the DVR. Unfortunately the issue was still present.

 

[Flintstone61]

Dagnabbit!! Maybe its the HVR device itself? Like it’s not up to the task? Hopefully somebody with direct experience chimes in. If it was my setup, i’d try and get all IP cams going like your other situation and use that model NVR. Or try a different Hybrid. But I’m no expert.

 

[Mike94]

Dagnabbit!! Maybe its the HVR device itself? Like it’s not up to the task? Hopefully somebody with direct experience chimes in. If it was my setup, i’d try and get all IP cams going like your other situation and use that model NVR. Or try a different Hybrid. But I’m no expert.

The only thing which I haven't tried is to swap the BT router with a 3rd party router and that would prove if there is any bottleneck on the network, although the current BT Hub is Gigabit Ethernet, so I'm not sure if this would help. I've made another test when I forced the NIC of the HVR to work on Gigabit Ethernet rather than on a self-adaptive mode, and it lost its connection to the Internet after a couple days, which makes me think that it might be something related to the BT equipment.

Looking forward for any suggestions

 

[Mike94]

I was almost thinking to give up this DVR, but it looks like that I have finally found the resolution to this nigthmare, which was literally ongoing for around a year! Below is what I've done:

I disabled the UPnP on DVR, assigned a static private IP address, then forwarded all necessary ports on a BT router(The broadband has a static public IP address). So bascially instead of using the Hikvision Cloud, I have decided to go via the public IP + port forwarding. I literally didn't need to change any more settings either on the DVR or the cameras, and all of the sudden everything started working so smooth. The remote live view has much more better audio and the remote playback is smooth, there is nothing to complain about so far. I have been testing a connection via the public IP for last couple days, and if everything stays stable, I'll increase the video quality of the cameras, but I think this shouldn't be problematic at all!

All in all still don't understand why this issue was only affecting the IP cameras, probably I will never know, although have a feeling that this is now all sorted..

Anyways, thank you All for your ideas and I will update you in next week or two, after I have done more testing and increased the quality of the video stream.

Cheers,

Mike