dahua NVR just stopped displaying cameras?? how to fix?

W

wozzzzza

Pulling my weight
Jan 5, 2015
449
102
all of a sudden my NVR just displayed "failed to find network host" for all the cameras, appears POE power has dropped out on it??
all the cameras are connected directly to the NVR ports.
tried restarting and same issue.
anyone know whats going on??
where do i find the poe settings? i cant find them.
i can still access the NVR remotely so the network port is working ok
 

Attachments

  • nvrpoe.jpg
    nvrpoe.jpg
    128.9 KB · Views: 37
Remove power from NVR.
Mark first to identify then unplug all camera cables that are plugged into NVR's POE ports.
Restore power to NVR.
Plug in camera cable #1 to its previous NVR POE port and wait.
Report back.
 
  • Like
Reactions: JDreaming, Flintstone61, looney2ns and 1 other person
sorted out. i powered it off this time in person not remote, when it started up it said port 7 had exceeded its maximum capacity.
i removed port 7 plug and it started up all ok now.
i plugged it back in and seems to be ok so no idea what went on there.
 
  • Like
Reactions: JDreaming and TonyR
Or the internal PoE switch going bad... It should start shutting down cameras when it exceeds its limit starting from the last active port... but I havent exactly tested that
 
  • Like
Reactions: JDreaming and Flintstone61
If everything is stable with cam 7 out of the equation, might be a cam....But I went and got a POE switch and made the conversion before it got overworked.
I'm running 9 cams on a 4116 Amcrest ( Dahua OEM) and I like my network response better on a 1Gbps Poe switch over the 80Mbps Wan connection on the NVR.
 
  • Like
Reactions: JDreaming, TonyR and bigredfish
nvr fan still running ok, no power, ive disconnected the cameras, left one in there, still same thing, restart and it willrun for 5 minutes then camera drops out.
so for fix, just stick a POE switch next to it??
 
  • Like
Reactions: EMPIRETECANDY
Yep you can add a POE switch.

Make sure the fan isn't dirty. Give a good air duster to the entire inside of the motherboard and see if that helps. If it is dirty it can cause this as well.
 
  • Like
Reactions: JDreaming and EMPIRETECANDY
Yes, if an exteral switch or power the nvr can search the camera, that means the poe module failed
 
  • Like
Reactions: JDreaming
got switch, plugged new cameras in, how do i get them onto the nvr? do i have to default all the cameras or something??
 
changed their ip with dahiua tools. got them working, just 2 that seem to have different passwords i need to default i guess
 
wozzzzza said:
just ordere a new 16 port POE switch
thanks.
Click to expand...

Is that an external POE switch or the POE module for the NVR?

What model is your NVR, btw?
 
Tic said:
Is that an external POE switch or the POE module for the NVR?

What model is your NVR, btw?
Click to expand...
cant remember model but its a POE model, i got an external POE switch as the poe had stuffed up in the nvr
 
Same thing happening to me but I originally got dahua PoE switch installed along with NVR, all of the sudden few days ago the nvr started displaying message that it failed to find host, tried restarting and all above, nothing worked - do you think it might be some issue with PoE switch>
 
You must log in or register to reply here.
Top Bottom