ExcellMedia

Hello, I am using 25 private HD cameras with static IP in our network and cameras i have configured in the channels with static IP. On Dahua (DH-NVR608-64-4ks2) NVR device, I am facing a problem with channels, whenever one channel going down on that channel creating duplicating with another channel. So, please proved the solution in case any one having the same problem and resolved. Thanks in advance...