Dahua IPC-HDW4431C-A stopped inside nvr4104

[Sander kerkhoff]

i have 3 dahuas running, 2x Dahua IPC-HDW4431C-A and one 5231R-Z
Today i noticed one of the 4431 was missing inside my NVR.

I unplugged it, and tried it with a new ethernet cable. Still nothing
Strange thing is, i can still ping the device:
C:\Users\sande>ping 192.168.1.202
Pinging 192.168.1.202 with 32 bytes of data:
Reply from 192.168.1.202: bytes=32 time=2ms TTL=64
Reply from 192.168.1.202: bytes=32 time=2ms TTL=64

whats going on here? And what can i do to bring it back alive?

It has been running for 1,5 years without problems

 

[SouthernYankee]

What is the make and model of the nvr ?
Is the camera plugged directly into the NVR or via a switch ?
Can you access the camera directly via a web browser (IE)
Have you tried a different port to connect the Ethernet cable?
Have you powered down everything, (+5 minutes) cameras and NVR and done a reboot?

 

[aristobrat]

You didn't recently upgrade the firmware on the NVR, did you? Andy was mentioning that some newer NVR firmwares will prevent the China-region cameras from connecting to them.

If not that, can you http://192.168.1.202 into the camera from a web browser and see a video stream, etc?

 

[Sander kerkhoff]

Cam is not accesible via http
I upgraded the nvr 6 months ago or so
Tried different ports on on the Powered hub

My nvr is 4104
Its down since 7 days

 

[aristobrat]

There might be a way to open the camera and hard reset it (either with a button, or by shorting out two pins). I’m not familiar with that model, so you’d have to do a Google search to see if that’s possible.

 

[mark_whocares]

will it still ping when you unplug it completely and leave it unplugged?

if yes, you are pinging the wrong IP.

 

[Sander kerkhoff]

no, it stops after unplugging. I know what i am doing
ill try the reset option. It has 2 pins to reset

What could have caused this?

 

[Sander kerkhoff]

a factory reset and its working again