Menu
What's new

ePOE reliability

R

Rusty Ross

Getting the hang of it
Joined
Oct 26, 2018
Messages
87
Reaction score
39
Location
Texas
Working with a N52B3P NVR I picked up used on ebay. I am in the process of installing my cameras that I purchased from Andy and keep running into issues with the connection. I have LR1002's on each of the coax and I have successfully installed two cameras; however I restarted the NVR and now one of the two cameras wont come up. Just says "failed to find network host..." It was connected not a few hours ago :smash:

I am not wanting to run new wire hence the reason to buying the epoe stuff but this is starting to piss me off. What should I try??
 
Last edited:
wittaj

wittaj

IPCT Contributor
Joined
Apr 28, 2019
Messages
25,028
Reaction score
48,794
Location
USA
I am wondering if it is an NVR issue.
 
bigredfish

bigredfish

Known around here
Joined
Sep 5, 2016
Messages
17,504
Reaction score
48,722
Location
Floriduh
If there is one weak spot in Dahua NVRs its their PoE switch. I've lost a couple over the years. Fortunately you can still use an external PoE switch so the NVR isnt a paperweight
 
R

Rusty Ross

Getting the hang of it
Joined
Oct 26, 2018
Messages
87
Reaction score
39
Location
Texas
bigredfish said:
If there is one weak spot in Dahua NVRs its their PoE switch. I've lost a couple over the years. Fortunately you can still use an external PoE switch so the NVR isnt a paperweight
Click to expand...
how would one do that with the ePOE? Sorry I’m still new to all this and getting frustrated. Just get a Poe switch and piggy it to the NVR?
 
R

Rusty Ross

Getting the hang of it
Joined
Oct 26, 2018
Messages
87
Reaction score
39
Location
Texas
Would something like this work??

Amcrest 9-Port POE+ Power Over Ethernet POE Switch with Metal Housing, 8-Ports POE+ 802.3at 96w (AMPS9E8P-AT-96)
 
As an Amazon Associate IPCamTalk earns from qualifying purchases.
wittaj

wittaj

IPCT Contributor
Joined
Apr 28, 2019
Messages
25,028
Reaction score
48,794
Location
USA
It is always a crap shoot buying on ebay - maybe one of the ports went out or was going out.

Is ePOE like other items with an NVR - if you use it, it is only good for X many channels and power budget is reduced or something?

What is your longest run - is ePOE necessary?

Did you plug all the cameras in at the same time or did you do one at a time and let the camera find it and initialize? If not, you could be having IP conflicts and would explain what happened when you rebooted.

This is the go to thread on setting up an NVR correctly:

***PSA for those with a New DAHUA NVR with Built-in PoE switch

IF you have a Dahua NVR with built-in PoE switch... DO NOT follow instructions telling you to use the config tool or switch the IP of your cameras or initialize anything..! With NVR's typically with a -P designation (Built-n PoE switch - example: 4208-8P-4KS2) none of that is required and it...
ipcamtalk.com ipcamtalk.com
 
R

Rusty Ross

Getting the hang of it
Joined
Oct 26, 2018
Messages
87
Reaction score
39
Location
Texas
wittaj said:
It is always a crap shoot buying on ebay - maybe one of the ports went out or was going out.

Is ePOE like other items with an NVR - if you use it, it is only good for X many channels and power budget is reduced or something?

What is your longest run - is ePOE necessary?

Did you plug all the cameras in at the same time or did you do one at a time and let the camera find it and initialize? If not, you could be having IP conflicts and would explain what happened when you rebooted.

This is the go to thread on setting up an NVR correctly:

***PSA for those with a New DAHUA NVR with Built-in PoE switch

IF you have a Dahua NVR with built-in PoE switch... DO NOT follow instructions telling you to use the config tool or switch the IP of your cameras or initialize anything..! With NVR's typically with a -P designation (Built-n PoE switch - example: 4208-8P-4KS2) none of that is required and it...
ipcamtalk.com ipcamtalk.com
Click to expand...
when I tested it I plugged each camera on port 1 and let it initialize. Could be my issue as they are now on each of their own ports. My longest run is about 75 feet I would say so not ePOE I don’t think. I’m not sure where to start or start over. Guess I need to read more
 
wittaj

wittaj

IPCT Contributor
Joined
Apr 28, 2019
Messages
25,028
Reaction score
48,794
Location
USA
Yep that is your problem - sometimes they will assign to the port it was first plugged into.

We see this all the time where someone bench tested their system of cameras and then installs it and don't connect the cameras into the same port and then some or all of the cameras are not showing.

You don't need ePOE for 75 feet.

I would suggest a factory reset of each camera and the NVR and start over following the PSA.
 
R

Rusty Ross

Getting the hang of it
Joined
Oct 26, 2018
Messages
87
Reaction score
39
Location
Texas
wittaj said:
Yep that is your problem - sometimes they will assign to the port it was first plugged into.

We see this all the time where someone bench tested their system of cameras and then installs it and don't connect the cameras into the same port and then some or all of the cameras are not showing.

You don't need ePOE for 75 feet.

I would suggest a factory reset of each camera and the NVR and start over following the PSA.
Click to expand...
how do I reset them? Three are physically mounted
 
bigredfish

bigredfish

Known around here
Joined
Sep 5, 2016
Messages
17,504
Reaction score
48,722
Location
Floriduh
Or it could be the switch or the power supply. Agree with above, start over, plug each one it, one at a time, hard reset using the onboard button in the trp door where the SD card is, allow the NVR to recognize it then login using the IE button, answer NO to two questions, assign and you should be fine

An external switch should take care of it I would think if the PoE switch is dying
 
You must log in or register to reply here.
Top