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Cameras dropping out on NVR view


New Member
Thread starter #1
Hi All,

I installed a IP CCTV system at home a few years ago, it was a basic system, 3 IP cameras 3mp and a separate power to each camera from my home network, I viewed and recorded the cameras from my PC to a 4TB HDD using ispyconnect, all was working great.

I have since added more cameras and my broadband speed has taken a hit due to bandwidth to and from my computer and I was losing cameras during the day, they would intermittently drop out and I wouldn’t see them in the app/viewer, obviously not quite what I wanted.

So, I took the plunge and purchased two 8 port POE switches with 2 uplink ports from eBay, not much information on them but what there is, I have written below.

10 Standard POE Switch
DATA: 1236POWER SUPPLY:12 + 36
Specification: 8POE+2UPLINK 10/100M
Power Supply Port: 1-8 Port for POE Power Supply
1-8 Port Support Extended the Extended Mode
Power Specification: DC52V 2.3A 120W

All the cameras now go into the POE switches and the Uplinks are used to link the two together with cat6 cable (10meters) each camera has its own cat 5e cable (home made) I have put new plugs on just to try and confirm its not a cable issue.
3 x 3mp none POE
2 x 2mp none POE
3 x 3mp POE
2 x 5mp POE

One of the uplink ports is used to connect the NVP cat 6 (1meter) the other is used to connect to my Sky Home Hub via a 10/100/1000 switch (the Sky does have 2 RJ45 connections but its just a HUB not a switch so I have just run one cable to the 10/100/1000 switch and then gone from there, so my home network is almost isolated from the CCTV network until it gets to the Sky HUB.

The NVR is from Encam, it’s a 16 channel NVR sold bare, with no HDD, I will use my old 4TB when I get up and running, for now I am using a 500GB HDD, just for testing
The NVR specifications are at the end of this post:-

The problems I am getting is that the IP cameras are still dropping out, the cable to each is cat 5e and no run is longer that 25meters, so all I can think is that I have to many cameras for my network, I have a network issue, or I have a network switch issue, how can I trouble shoot the problem, the software on the NVR looks almost identical to the Hikvision NVRs, I have replaced the rj45 plugs on both ends just to try and eliminate that, the power and connection lights on the POE switch don't seem to change state whilst I have been watching it.

The NVR specifications
encam NVR 16 Channel H.265 CCTV Recorder for 5MP IP Cameras
Encam recorders combine reliable recording and user friendly interfaces making it your perfect choice when installing CCTV systems.
Up to 5MP Resolution Recording and Playback
HD and VGA Output,HD Port up to 1920×1080
Support H.265+/H.265/H.264+/H.264 Video Format
Support 1 SATA up to 8TB Capacity
This NVR allows for 3rd party cameras to be installed (some may need to be configured to work)

Smart Technology
The smart technology allows you to view your cameras anywhere in the world live from your android or IOS device! You can also setup email notification’s to alert you if someone is on your property and set cloud backups to record footage just in case your recorder is stolen. You can also setup sharing footage over the internet.

Android or IOS viewing
Thanks to the peer to peer (P2P) technology viewing on your mobile phone or tablet is an easy process. Simply scan the onscreen QR (barcode)code to download the ap (Bitvision) from the google play store and then scan the serial number to add your system. You can now view your cameras Worldwide with the touch of a button in real time.

Motion Detection
Encam recorders allow you set up motion detection for your cameras
Set parameters (recording zones) for each camera so your motion detection is set to key areas of your property.
Adjust the sensitivity of your motion detection to avoid recording every bird or cat that passes your camera.
You can set your record time too, you can set the motion detection to only record at night time or only during work hours or alternatively just set the amount of time in seconds the footage is captured (in seconds) when the motion detection is triggered. This can save valuable space on your hard drive.

Our recorders support upto 8TB hard drives allowing for plenty of footage to be recorded (Hard Drive not supplied)

Main Processor: ARM Cortex A7 Processor
Operating system: Embedded LINUX
Video Outputs: VGA & HDMI
Audio Outputs: 3.5mm Stereo Jack socket
Audio Bit Rate: 64kbps
Audio Compression: G711u, G711a, ADPCM_DVI4

Trigger Events Recording, Email, FTP, Snapshot, Buzzer and Screen Tips, alarm output
HD Output1 Resolution: 4K 3840 x 2160 at 30Hz, 1920 × 1080/60Hz, 1280 × 1024/60Hz, 1280 × 720/60Hz, 1024 × 768/60Hz
VGA R esolution:1920 × 1080/60Hz, 1280 × 1024/60Hz, 1280 × 720/60Hz, 1024 × 768/60Hz
Digital Zoom: YES
OSD: Camera Title, Time, Recording, Motion Detection

Video Compression H265/H264/H265+/H264+
Resolution 5MP(2592×1944),4MP(2688×1520),3MP(2048×1536),1080P(1920×1080),960P(1280x960),720P(1280×720),D1 (720×576/720×480)
Record Rate
PAL:5MP@16×25fp,4MP@16x25fp,3MP@16×25fp,1080P@16×25fp, 960P@16×25fp,720P@16×25fp, D1@16×25fp
NTSC: 5MP@16×30fp,4MP@16×30fp,3MP@16×30fp,1080P@16×30fp, 960P@16×30fp, 720P@16×30fp, D1@16×30fp
Record Mode Manual\Timer\Motion Detection

Playback & Backup
Local Sync Playback 1CH 5MP@30fps, 1CH 4MP@30fps, 2CH 3M@30fps, 4CH 1080P@20fps, 4CH 960P@30fps, 4CH 720P@30fps
Decode Capability 4CH 1080P@20fps
Remote Sync Playback YES
Search Mode ALL, Channel, Manual, Time, Date, Motion Detection
Playback Functions Play, Pause, Stop, Fast Play, Digital Zoom
Backup Mode USB Device/Network

Interface 1 RJ45 10M/100M Adaptive Ethernet Interface
Incoming Bandwidth 80MB
Onvif Version Supports Onvif 2.4
Web Browser IE8-11, Google Chrome (lower than Ver44), Firefox (lower than Ver53)
CMS Software Support Windows 7/ Windows 8/Windows 10
Cloud Support(P2P) Yes Smart Phone iPhone, iPad, Android, Android Pad

Language Chinese, English, Polish, Czech, Russian, Thai, Hebrew, Arabic, Bulgarian, Farisa German, French, Portuguese, Turkic, Spanish, Italian, Hungarian, Romanian, Korean, Dutch, Greek
USB Interface 2 x USB 2.0 Interfaces