Problem with a Samsung SRD-1642 DVR from WAN

[genius2000 0]

Hi all from Italy,

 

I just installed 8 Samsung Analogic cameras (700TVL - SCO-2080R) and a Samsung SRD-1642 DVR, it's all working fine, but the DVR become not reachable from the WAN after 12/14 hours, then I have to restart it.

 

It uses a No-IP DDNS that when the issue happens itìs pingable, it uses standard 80 port, and also I forwarded 4520-4524 ports.

 

From the LAN it's all working fine, I think there is no configuration issues, but I actually don't know where to look for solve this problem.

 

Any help will be very appreciated.