Maybe I should have broken this forum topic down into 2 topic post, one for the problem with my IP cameras dropping in and out of recording, and one for the problem of being able to have both IP cameras connected to only one of the DVR NIC ports and keeping the 2nd DVR NIC port for my home/internet use. But I believe the problems are connected.

I learned about connecting both the PTZ external power transformer at the camera, and the camera to the POE switch is Do Not! But have learned nothing about if "daisy chaining" options can or can not not be made. Or if adding a inline power injector upstream of my existing POE switch could work.

What I think I have learned here as far as the IP camera recording problem is that the problem is with the cameras, not the DVR.

The problem could be the settings in the cameras are overloading the available network bandwidth, but unable to determine why.

As far as the available bandwidth, I don't think the analog cameras input have anything to do with using any of the DVR's available bandwidth when it comes to recording, but do not know if my logic on this is correct.

Since the HYBDVR-FE016480 was advertised to be 16 analog & 16 IP camera capable, I do not see how only having 7 analog cameras, and 2 IP cameras hooked into it could be jamming up the bandwidth?

If the bandwidth is only needed/used by the 2 NIC ports on the DVR, it seems unlikely to me that having 2 IP cameras hooked up, even to just one of the 2 NIC ports, should jam up the bandwidth on a DVR capable of having up to 16 IP cameras on it?

At the moment, the NIC ports are only operating 1 IP camera each, and still the recording drops out.

I do wonder however if the DVR setup to connect it for internet/home net use might be part of the problem? Those settings were made by SCK help line via the remote control of my computer, so I assume they are good. But I do not know that for a fact either, as I am not even close to being a network administrator when it comes to setting up networks. But it seems to me that DVR internet connection would impact bandwidth use on ethernet port 1, the one I had the internet plugged into. It is by the way, the DVR ethernet port that the IP camera dropping the recording most is plugged into.

I do know that at the moment I am unable to have my homes security system working as I expected it would when I put all that money out to buy it, and upgrade it, and am not happy about that at all.

I was hoping this "Support Form" would offer some solutions to my problems, but so far I seem to be running in a circle, and so my IP cameras still don't record reliably. I still have to tie up both my DVR NIC ethernet ports to run only 2 IP cameras and no longer have a way to connect to my home network or the internet unless I take one of the IP cameras off line so I can connect the DVR to my router.

As I see it, the benefit of this forum is so folks can learn how to solve problems in a format that allows others to learn how to do so as well. A technician connecting to someones computer and doing a fix remotely may fix a problem, but no one learns anything, except maybe the technician, and when the problem is not fixed, the problem remains.

I hoped this forum would be a place where technicians and users alike "brainstormed" a solution.

If this form is only for people that are masters of security camera setups, then I am in the wrong place, and readers/users should be advised of that so as not to waste everyone's time.

I think the info required to problem solve, is someplace in this now lengthy thread. I recon I will keep checking back to see if someone has any suggestions for me to try, and if they work, let other folks I see checking this post know what worked.

Thanks for the reply Ted!

Ya, a lot happened throughout the life of this thread.

I calculate that if I end this thread and open up new threads that deal with more focused problems it can only help things along.

I have a email into your product help link to try and sort out the problem with the SIP-EMVD-21 camera dropping its recording to the DVR/NVR, and other trouble it is causing here, (the audio is also not working, a new problem I just discovered). Dan is working on that one, so will work on that through that contact method. I think I will start a new topic dealing with that cameras recording and audio problems, and see if solutions can be found in it, and also let folks know the fix your SCK support folks find if they solve the problem first. I will name it "SIP-EMVD-21-4R recording/audio problem".

I will start a new thread to deal with the problem you addressed above in your post, that being how to connect the SIP-EMVD-21 camera, a IPPTZ-EL2MPL-12X-Mini-O camera to Ethernet port 1 of my DVR/NVR, and my PK5001Z modem to Ethernet port 2 of the DVR/NVR.

Looks like you may have a fix in your post, but I have some questions I would like to throw out there, but I think it will help if I close out this post and open a new topic to deal with that problem.

I will name it "Connecting cameras of differing power", and see happens.

Thanks to all who have posted ideas here, sorry if I made it so confusing.

Nothing to do with anything in this thread, but thought someone might enjoy a couple of photos here about.

We live on a dead end road, this is what is at the end.

And there are big trees about, had to splice 2 photos to get it all. Couple of friends by it for scale.

Thanks Dan,

"Cameras on port 2 

LAN on port 1"

That has been my goal for the IP camera and home network/internet hookup.

I have a couple of questions about your "Option 6:" that you have posted in my new topic "Connecting cameras of differing power" I opened up the other day. I got 2 responses to the question there that seem to conflict? Will sort it out in the  "Connecting cameras of differing power" topic.

As for "may clean up some of the camera issues", I still have to post the new topic "SIP-EMVD-21-4R recording/audio problem", and will sort out that continuing problem on the topic post. Hope you are right about it being a fix.

Until I get both cameras on Ethernet port 2, I plan to try swapping my current PTZ from port 2 to port 1, and the SIP-EMVD-21 to port 2 and see if that improves the recording issue on the SIP-EMVD-21.

Also a correction here to something I wrote in my #23 post above on January 21, 2016 - 6:39 pm where I wrote:

["I will start a new thread to deal with the problem you addressed above in your post, that being how to connect the SIP-EMVD-21 camera, a IPPTZ-EL2MPL-12X-Mini-O camera to Ethernet port 1 of my DVR/NVR, and my PK5001Z modem to Ethernet port 2 of the DVR/NVR."]

It should have read:

I will start a new thread to deal with the problem you addressed above in your post, that being how to connect the SIP-EMVD-21 camera, AND a IPPTZ-EL2MPL-12X-Mini-O camera to Ethernet port 2 of my DVR/NVR, and my PK5001Z modem to Ethernet port 1 of the DVR/NVR.

Just so you know we will be on the same page when it comes to DVR Ethernet ports for camera and LAN/internet use.

Anyway, I will start the new topic "SIP-EMVD-21-4R recording/audio problem" and deal with the SIP-EMVD-21 camera issues in it.

And I want you to know I appreciate your time and effort in this forum to help me with my setup problems. THANKS