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Dahua IPC-HDW4200S and NVR 4104P connection lost

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I have two cameras IPC-HDW4200S (firmware 2.420) and a NVR NVR 4104P (Poe) (firmware 3.2300.VT00.0.R).

 

Cameras are connected both to the NVR integrated poe switch.

 

After some days (5-7) both the cameras lose the connection. In the NVR log i can read the messages "REMOTE INFO" and the cameras starts to LOGIN and LOGOUT.

 

Any suggestion ? Could be a firmware problem ?

 

After a software reboot of the NVR the cameras start to work properly...

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I have two cameras IPC-HDW4200S (firmware 2.420) and a NVR NVR 4104P (Poe) (firmware 3.2300.VT00.0.R).

 

Cameras are connected both to the NVR integrated poe switch.

 

After some days (5-7) both the cameras lose the connection. In the NVR log i can read the messages "REMOTE INFO" and the cameras starts to LOGIN and LOGOUT.

 

Any suggestion ? Could be a firmware problem ?

 

After a software reboot of the NVR the cameras start to work properly...

 

Check (and change if needed) IPV6 address of nvr and cameras.

If identical then there might be a problem of conflict. Also, create and use a different account (reusable) to allow nvr to connect to cameras (user might be locked).

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I have two cameras IPC-HDW4200S (firmware 2.420) and a NVR NVR 4104P (Poe) (firmware 3.2300.VT00.0.R).

 

Cameras are connected both to the NVR integrated poe switch.

 

After some days (5-7) both the cameras lose the connection. In the NVR log i can read the messages "REMOTE INFO" and the cameras starts to LOGIN and LOGOUT.

 

Any suggestion ? Could be a firmware problem ?

 

After a software reboot of the NVR the cameras start to work properly...

 

Check (and change if needed) IPV6 address of nvr and cameras.

If identical then there might be a problem of conflict. Also, create and use a different account (reusable) to allow nvr to connect to cameras (user might be locked).

 

Thanks.

I use IPV4 and not IPV6.

I have seen that before the problem starts, there is a shutdown of the nvr without any reason. The nvr is connected to a UPS power supply backup system.

 

Any suggestion ?

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Do you have auto reboot from auto maintenance enabled? This would cause it to disconnect every 7 days.

 

Thanks for your answer !

I disabled the auto reboot because I thought it was cause of the problem, but it isn't.....

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