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.